/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-invgen/string_concat-noarr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 05:53:47,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 05:53:47,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 05:53:47,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 05:53:47,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 05:53:47,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 05:53:47,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 05:53:47,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 05:53:47,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 05:53:47,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 05:53:47,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 05:53:47,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 05:53:47,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 05:53:47,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 05:53:47,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 05:53:47,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 05:53:47,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 05:53:47,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 05:53:47,821 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 05:53:47,822 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 05:53:48,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 05:53:48,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 05:53:48,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 05:53:48,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 05:53:48,142 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 05:53:48,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2021-05-06 05:53:48,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376936ccf/cc9604b6fcec4e71bc14307f2fd9eb53/FLAGb8f6d41f3 [2021-05-06 05:53:48,601 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 05:53:48,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2021-05-06 05:53:48,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376936ccf/cc9604b6fcec4e71bc14307f2fd9eb53/FLAGb8f6d41f3 [2021-05-06 05:53:49,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/376936ccf/cc9604b6fcec4e71bc14307f2fd9eb53 [2021-05-06 05:53:49,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 05:53:49,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 05:53:49,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 05:53:49,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 05:53:49,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 05:53:49,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c594f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49, skipping insertion in model container [2021-05-06 05:53:49,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 05:53:49,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 05:53:49,165 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i[893,906] [2021-05-06 05:53:49,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:53:49,201 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 05:53:49,247 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i[893,906] [2021-05-06 05:53:49,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:53:49,272 INFO L208 MainTranslator]: Completed translation [2021-05-06 05:53:49,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49 WrapperNode [2021-05-06 05:53:49,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 05:53:49,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 05:53:49,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 05:53:49,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 05:53:49,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 05:53:49,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 05:53:49,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 05:53:49,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 05:53:49,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 05:53:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 05:53:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 05:53:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 05:53:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 05:53:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 05:53:49,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 05:53:49,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 05:53:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 05:53:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 05:53:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 05:53:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 05:53:49,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 05:53:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 05:53:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 05:53:49,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 05:53:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 05:53:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 05:53:49,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 05:53:49,615 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-06 05:53:49,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:53:49 BoogieIcfgContainer [2021-05-06 05:53:49,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 05:53:49,617 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 05:53:49,617 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 05:53:49,618 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 05:53:49,620 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:53:49" (1/1) ... [2021-05-06 05:53:49,677 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 05:53:49,682 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-06 05:53:49,686 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 05:53:49,687 INFO L91 elerationTransformer]: Accelerated Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] to Formula: (> v_itFin_1 0) InVars {} OutVars{} AuxVars[v_itFin_1] AssignedVars[] [2021-05-06 05:53:49,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:53:49 BasicIcfg [2021-05-06 05:53:49,691 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 05:53:49,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 05:53:49,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 05:53:49,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 05:53:49,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 05:53:49" (1/4) ... [2021-05-06 05:53:49,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41405597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:53:49, skipping insertion in model container [2021-05-06 05:53:49,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:53:49" (2/4) ... [2021-05-06 05:53:49,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41405597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:53:49, skipping insertion in model container [2021-05-06 05:53:49,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:53:49" (3/4) ... [2021-05-06 05:53:49,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41405597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 05:53:49, skipping insertion in model container [2021-05-06 05:53:49,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:53:49" (4/4) ... [2021-05-06 05:53:49,696 INFO L111 eAbstractionObserver]: Analyzing ICFG string_concat-noarr.iJordan [2021-05-06 05:53:49,727 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 05:53:49,730 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 05:53:49,744 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 05:53:49,759 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 05:53:49,759 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 05:53:49,759 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 05:53:49,759 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 05:53:49,759 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 05:53:49,759 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 05:53:49,759 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 05:53:49,759 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 05:53:49,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 05:53:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-06 05:53:49,776 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:49,776 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:49,777 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:49,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:49,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1427438595, now seen corresponding path program 1 times [2021-05-06 05:53:49,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:49,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582385079] [2021-05-06 05:53:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:49,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:49,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:49,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582385079] [2021-05-06 05:53:49,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582385079] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:53:49,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:53:49,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 05:53:49,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961051917] [2021-05-06 05:53:49,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 05:53:49,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:49,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 05:53:49,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:53:49,923 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:49,952 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-05-06 05:53:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 05:53:49,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-06 05:53:49,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:49,958 INFO L225 Difference]: With dead ends: 26 [2021-05-06 05:53:49,958 INFO L226 Difference]: Without dead ends: 18 [2021-05-06 05:53:49,959 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:53:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-06 05:53:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-06 05:53:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-05-06 05:53:49,978 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2021-05-06 05:53:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:49,978 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-05-06 05:53:49,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-05-06 05:53:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 05:53:49,979 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:49,979 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:49,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 05:53:49,979 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:49,980 INFO L82 PathProgramCache]: Analyzing trace with hash -548355260, now seen corresponding path program 1 times [2021-05-06 05:53:49,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:49,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933058013] [2021-05-06 05:53:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:50,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:50,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933058013] [2021-05-06 05:53:50,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933058013] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:53:50,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:53:50,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 05:53:50,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496073573] [2021-05-06 05:53:50,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 05:53:50,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:50,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 05:53:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 05:53:50,087 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:50,249 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-05-06 05:53:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 05:53:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-06 05:53:50,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:50,250 INFO L225 Difference]: With dead ends: 27 [2021-05-06 05:53:50,250 INFO L226 Difference]: Without dead ends: 23 [2021-05-06 05:53:50,250 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 108.4ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-06 05:53:50,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-06 05:53:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-05-06 05:53:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-05-06 05:53:50,253 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2021-05-06 05:53:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:50,253 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-05-06 05:53:50,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-05-06 05:53:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-06 05:53:50,254 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:50,254 INFO L523 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:50,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 05:53:50,254 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:50,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:50,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1217379968, now seen corresponding path program 1 times [2021-05-06 05:53:50,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:50,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998607775] [2021-05-06 05:53:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:50,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:50,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998607775] [2021-05-06 05:53:50,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998607775] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:50,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769646170] [2021-05-06 05:53:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-06 05:53:50,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:50,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:50,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:50,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:50,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:50,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:50,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769646170] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:50,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:50,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-05-06 05:53:50,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27685782] [2021-05-06 05:53:50,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 05:53:50,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:50,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 05:53:50,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-05-06 05:53:50,530 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:50,682 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-05-06 05:53:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 05:53:50,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-05-06 05:53:50,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:50,684 INFO L225 Difference]: With dead ends: 36 [2021-05-06 05:53:50,684 INFO L226 Difference]: Without dead ends: 32 [2021-05-06 05:53:50,684 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 119.4ms TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-05-06 05:53:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-05-06 05:53:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2021-05-06 05:53:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-05-06 05:53:50,687 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2021-05-06 05:53:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:50,688 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-05-06 05:53:50,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-05-06 05:53:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-06 05:53:50,688 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:50,688 INFO L523 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:50,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-06 05:53:50,905 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:50,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1576852156, now seen corresponding path program 2 times [2021-05-06 05:53:50,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:50,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511061331] [2021-05-06 05:53:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:50,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:50,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511061331] [2021-05-06 05:53:50,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511061331] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:50,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694623135] [2021-05-06 05:53:50,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:51,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:53:51,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:51,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-06 05:53:51,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:51,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:51,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694623135] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:51,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:51,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-05-06 05:53:51,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141091651] [2021-05-06 05:53:51,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-06 05:53:51,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:51,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-06 05:53:51,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-05-06 05:53:51,111 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:51,275 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2021-05-06 05:53:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 05:53:51,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-05-06 05:53:51,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:51,276 INFO L225 Difference]: With dead ends: 41 [2021-05-06 05:53:51,276 INFO L226 Difference]: Without dead ends: 37 [2021-05-06 05:53:51,277 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:53:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-06 05:53:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-05-06 05:53:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-05-06 05:53:51,279 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2021-05-06 05:53:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:51,280 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-05-06 05:53:51,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-05-06 05:53:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-06 05:53:51,280 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:51,280 INFO L523 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:51,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:51,498 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:51,499 INFO L82 PathProgramCache]: Analyzing trace with hash -862726152, now seen corresponding path program 3 times [2021-05-06 05:53:51,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:51,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128096456] [2021-05-06 05:53:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:51,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:51,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128096456] [2021-05-06 05:53:51,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128096456] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:51,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347593928] [2021-05-06 05:53:51,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:51,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-06 05:53:51,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:51,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-06 05:53:51,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:51,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:51,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347593928] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:51,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:51,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-05-06 05:53:51,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576193393] [2021-05-06 05:53:51,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 05:53:51,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:51,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 05:53:51,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-05-06 05:53:51,728 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:51,885 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2021-05-06 05:53:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 05:53:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-05-06 05:53:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:51,886 INFO L225 Difference]: With dead ends: 46 [2021-05-06 05:53:51,886 INFO L226 Difference]: Without dead ends: 42 [2021-05-06 05:53:51,887 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-05-06 05:53:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-05-06 05:53:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2021-05-06 05:53:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-05-06 05:53:51,889 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 23 [2021-05-06 05:53:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:51,889 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-05-06 05:53:51,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-05-06 05:53:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-06 05:53:51,890 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:51,890 INFO L523 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:52,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:52,106 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:52,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:52,107 INFO L82 PathProgramCache]: Analyzing trace with hash -245336524, now seen corresponding path program 4 times [2021-05-06 05:53:52,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:52,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461183396] [2021-05-06 05:53:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:52,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:52,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:52,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461183396] [2021-05-06 05:53:52,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461183396] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:52,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241323666] [2021-05-06 05:53:52,191 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:52,231 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:53:52,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:52,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-06 05:53:52,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:52,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:52,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241323666] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:52,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:52,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2021-05-06 05:53:52,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700986807] [2021-05-06 05:53:52,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-06 05:53:52,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:52,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-06 05:53:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-05-06 05:53:52,301 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:52,480 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-05-06 05:53:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-06 05:53:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-05-06 05:53:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:52,481 INFO L225 Difference]: With dead ends: 51 [2021-05-06 05:53:52,481 INFO L226 Difference]: Without dead ends: 47 [2021-05-06 05:53:52,481 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 161.8ms TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:53:52,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-06 05:53:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2021-05-06 05:53:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2021-05-06 05:53:52,484 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 25 [2021-05-06 05:53:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:52,484 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-05-06 05:53:52,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2021-05-06 05:53:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-06 05:53:52,484 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:52,484 INFO L523 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:52,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:52,701 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:52,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:52,701 INFO L82 PathProgramCache]: Analyzing trace with hash 360609136, now seen corresponding path program 5 times [2021-05-06 05:53:52,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:52,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567178517] [2021-05-06 05:53:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:52,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:52,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:52,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567178517] [2021-05-06 05:53:52,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567178517] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:52,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349460078] [2021-05-06 05:53:52,788 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:52,826 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-06 05:53:52,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:52,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-06 05:53:52,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:52,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:52,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349460078] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:52,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:52,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 14 [2021-05-06 05:53:52,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338156131] [2021-05-06 05:53:52,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-06 05:53:52,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:52,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-06 05:53:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-05-06 05:53:52,897 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:53,112 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2021-05-06 05:53:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-06 05:53:53,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-06 05:53:53,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:53,113 INFO L225 Difference]: With dead ends: 56 [2021-05-06 05:53:53,113 INFO L226 Difference]: Without dead ends: 52 [2021-05-06 05:53:53,113 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 179.0ms TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2021-05-06 05:53:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-05-06 05:53:53,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2021-05-06 05:53:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2021-05-06 05:53:53,117 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 27 [2021-05-06 05:53:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:53,118 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2021-05-06 05:53:53,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-05-06 05:53:53,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 05:53:53,118 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:53,118 INFO L523 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:53,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-05-06 05:53:53,332 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:53,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:53,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1441163860, now seen corresponding path program 6 times [2021-05-06 05:53:53,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:53,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923229922] [2021-05-06 05:53:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:53,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:53,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:53,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923229922] [2021-05-06 05:53:53,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923229922] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:53,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468858878] [2021-05-06 05:53:53,406 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:53,457 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-06 05:53:53,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:53,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-06 05:53:53,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:53,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:53,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468858878] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:53,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:53,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 15 [2021-05-06 05:53:53,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160759445] [2021-05-06 05:53:53,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-06 05:53:53,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:53,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-06 05:53:53,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-05-06 05:53:53,547 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:53,773 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2021-05-06 05:53:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-06 05:53:53,773 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-06 05:53:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:53,774 INFO L225 Difference]: With dead ends: 61 [2021-05-06 05:53:53,774 INFO L226 Difference]: Without dead ends: 57 [2021-05-06 05:53:53,775 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 198.0ms TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-05-06 05:53:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-06 05:53:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2021-05-06 05:53:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-05-06 05:53:53,777 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 29 [2021-05-06 05:53:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:53,777 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-05-06 05:53:53,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2021-05-06 05:53:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-06 05:53:53,778 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:53,778 INFO L523 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:53,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:53,999 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:54,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:54,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2073192728, now seen corresponding path program 7 times [2021-05-06 05:53:54,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:54,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396489149] [2021-05-06 05:53:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:54,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:54,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396489149] [2021-05-06 05:53:54,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396489149] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:54,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682481789] [2021-05-06 05:53:54,085 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:54,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-06 05:53:54,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:54,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:54,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682481789] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:54,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:54,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 16 [2021-05-06 05:53:54,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258720849] [2021-05-06 05:53:54,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 05:53:54,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:54,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 05:53:54,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:53:54,196 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:54,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:54,486 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2021-05-06 05:53:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-06 05:53:54,487 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-05-06 05:53:54,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:54,488 INFO L225 Difference]: With dead ends: 66 [2021-05-06 05:53:54,488 INFO L226 Difference]: Without dead ends: 62 [2021-05-06 05:53:54,488 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 245.8ms TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2021-05-06 05:53:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-05-06 05:53:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-05-06 05:53:54,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.18) internal successors, (59), 50 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2021-05-06 05:53:54,491 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 31 [2021-05-06 05:53:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:54,491 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2021-05-06 05:53:54,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2021-05-06 05:53:54,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-06 05:53:54,492 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:54,492 INFO L523 BasicCegarLoop]: trace histogram [9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:54,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:54,708 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash 432421156, now seen corresponding path program 8 times [2021-05-06 05:53:54,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:54,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268557662] [2021-05-06 05:53:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:54,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:54,812 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:54,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:54,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268557662] [2021-05-06 05:53:54,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268557662] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:54,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840065728] [2021-05-06 05:53:54,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:54,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:53:54,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:54,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-06 05:53:54,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:54,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:54,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840065728] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:54,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:54,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 17 [2021-05-06 05:53:54,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990777999] [2021-05-06 05:53:54,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-06 05:53:54,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:54,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-06 05:53:54,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-05-06 05:53:54,931 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:55,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:55,221 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2021-05-06 05:53:55,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-06 05:53:55,222 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-05-06 05:53:55,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:55,222 INFO L225 Difference]: With dead ends: 71 [2021-05-06 05:53:55,222 INFO L226 Difference]: Without dead ends: 67 [2021-05-06 05:53:55,223 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 253.2ms TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:53:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-06 05:53:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2021-05-06 05:53:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 55 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2021-05-06 05:53:55,226 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 33 [2021-05-06 05:53:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:55,226 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-05-06 05:53:55,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2021-05-06 05:53:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-06 05:53:55,227 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:55,227 INFO L523 BasicCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:55,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-06 05:53:55,441 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:55,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1149289376, now seen corresponding path program 9 times [2021-05-06 05:53:55,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:55,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458018518] [2021-05-06 05:53:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:55,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:55,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458018518] [2021-05-06 05:53:55,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458018518] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:55,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085280645] [2021-05-06 05:53:55,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:55,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-06 05:53:55,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:55,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-06 05:53:55,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:55,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:55,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085280645] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:55,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:55,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 18 [2021-05-06 05:53:55,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532513910] [2021-05-06 05:53:55,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-06 05:53:55,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:55,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-06 05:53:55,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-05-06 05:53:55,673 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:56,093 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2021-05-06 05:53:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-06 05:53:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-05-06 05:53:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:56,094 INFO L225 Difference]: With dead ends: 76 [2021-05-06 05:53:56,094 INFO L226 Difference]: Without dead ends: 72 [2021-05-06 05:53:56,095 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 337.3ms TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2021-05-06 05:53:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-05-06 05:53:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2021-05-06 05:53:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 60 states have internal predecessors, (71), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-05-06 05:53:56,097 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 35 [2021-05-06 05:53:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:56,098 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-05-06 05:53:56,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2021-05-06 05:53:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-06 05:53:56,098 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:56,098 INFO L523 BasicCegarLoop]: trace histogram [11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:56,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:56,319 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:56,319 INFO L82 PathProgramCache]: Analyzing trace with hash -754687844, now seen corresponding path program 10 times [2021-05-06 05:53:56,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:56,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481173154] [2021-05-06 05:53:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:56,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:56,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481173154] [2021-05-06 05:53:56,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481173154] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:56,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051413496] [2021-05-06 05:53:56,464 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:56,506 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:53:56,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:56,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-06 05:53:56,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:56,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:56,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051413496] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:56,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:56,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 19 [2021-05-06 05:53:56,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129804195] [2021-05-06 05:53:56,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-06 05:53:56,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:56,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-06 05:53:56,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-05-06 05:53:56,593 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:56,928 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2021-05-06 05:53:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-06 05:53:56,929 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-05-06 05:53:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:56,929 INFO L225 Difference]: With dead ends: 81 [2021-05-06 05:53:56,929 INFO L226 Difference]: Without dead ends: 77 [2021-05-06 05:53:56,930 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 335.5ms TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:53:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-06 05:53:56,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 70. [2021-05-06 05:53:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 65 states have internal predecessors, (77), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-05-06 05:53:56,933 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 37 [2021-05-06 05:53:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:56,933 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-05-06 05:53:56,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-05-06 05:53:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-06 05:53:56,934 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:56,934 INFO L523 BasicCegarLoop]: trace histogram [12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:57,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:57,149 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:57,150 INFO L82 PathProgramCache]: Analyzing trace with hash 500262360, now seen corresponding path program 11 times [2021-05-06 05:53:57,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:57,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84079558] [2021-05-06 05:53:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:57,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:57,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:57,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84079558] [2021-05-06 05:53:57,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84079558] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:57,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913631228] [2021-05-06 05:53:57,259 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:57,317 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-06 05:53:57,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:57,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-06 05:53:57,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:57,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:57,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913631228] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:57,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:57,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 20 [2021-05-06 05:53:57,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249721060] [2021-05-06 05:53:57,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-06 05:53:57,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:57,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-06 05:53:57,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:53:57,413 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 17 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:57,771 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2021-05-06 05:53:57,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-06 05:53:57,771 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 17 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-05-06 05:53:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:57,772 INFO L225 Difference]: With dead ends: 86 [2021-05-06 05:53:57,772 INFO L226 Difference]: Without dead ends: 82 [2021-05-06 05:53:57,772 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 338.8ms TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 05:53:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-05-06 05:53:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2021-05-06 05:53:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 70 states have internal predecessors, (83), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2021-05-06 05:53:57,774 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 39 [2021-05-06 05:53:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:57,775 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2021-05-06 05:53:57,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 17 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-05-06 05:53:57,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-06 05:53:57,775 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:57,775 INFO L523 BasicCegarLoop]: trace histogram [13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:57,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-06 05:53:57,991 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:57,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:57,992 INFO L82 PathProgramCache]: Analyzing trace with hash -378401772, now seen corresponding path program 12 times [2021-05-06 05:53:57,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:57,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996101679] [2021-05-06 05:53:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:58,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:58,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:58,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996101679] [2021-05-06 05:53:58,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996101679] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:58,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016189969] [2021-05-06 05:53:58,162 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:58,245 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-06 05:53:58,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:53:58,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-06 05:53:58,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:58,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:58,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016189969] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:58,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:58,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 21 [2021-05-06 05:53:58,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626256634] [2021-05-06 05:53:58,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-06 05:53:58,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:58,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-06 05:53:58,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2021-05-06 05:53:58,374 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:53:58,906 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2021-05-06 05:53:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-06 05:53:58,907 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-05-06 05:53:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:53:58,907 INFO L225 Difference]: With dead ends: 91 [2021-05-06 05:53:58,908 INFO L226 Difference]: Without dead ends: 87 [2021-05-06 05:53:58,908 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 482.1ms TimeCoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:53:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-05-06 05:53:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 80. [2021-05-06 05:53:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 75 states have internal predecessors, (89), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:58,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2021-05-06 05:53:58,912 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 41 [2021-05-06 05:53:58,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:53:58,912 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2021-05-06 05:53:58,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:53:58,912 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2021-05-06 05:53:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-06 05:53:58,913 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:53:58,913 INFO L523 BasicCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:53:59,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-05-06 05:53:59,138 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:53:59,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:53:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1333924688, now seen corresponding path program 13 times [2021-05-06 05:53:59,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:53:59,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552853135] [2021-05-06 05:53:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:53:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:53:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:59,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:53:59,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552853135] [2021-05-06 05:53:59,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552853135] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:59,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807896694] [2021-05-06 05:53:59,311 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:53:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:53:59,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-06 05:53:59,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:53:59,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:53:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:53:59,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807896694] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:53:59,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:53:59,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 22 [2021-05-06 05:53:59,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875606003] [2021-05-06 05:53:59,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-06 05:53:59,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:53:59,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-06 05:53:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2021-05-06 05:53:59,515 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:00,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:00,060 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2021-05-06 05:54:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-06 05:54:00,060 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-05-06 05:54:00,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:00,061 INFO L225 Difference]: With dead ends: 96 [2021-05-06 05:54:00,061 INFO L226 Difference]: Without dead ends: 92 [2021-05-06 05:54:00,062 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 518.6ms TimeCoverageRelationStatistics Valid=400, Invalid=1006, Unknown=0, NotChecked=0, Total=1406 [2021-05-06 05:54:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-05-06 05:54:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2021-05-06 05:54:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.1875) internal successors, (95), 80 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2021-05-06 05:54:00,066 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 43 [2021-05-06 05:54:00,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:00,066 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2021-05-06 05:54:00,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 19 states have internal predecessors, (48), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2021-05-06 05:54:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-06 05:54:00,067 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:00,067 INFO L523 BasicCegarLoop]: trace histogram [15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:00,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-05-06 05:54:00,293 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:00,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:00,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1907178380, now seen corresponding path program 14 times [2021-05-06 05:54:00,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:00,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251795343] [2021-05-06 05:54:00,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:00,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:00,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:00,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251795343] [2021-05-06 05:54:00,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251795343] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:00,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658412922] [2021-05-06 05:54:00,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:00,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:54:00,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:00,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 18 conjunts are in the unsatisfiable core [2021-05-06 05:54:00,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:00,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:00,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658412922] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:00,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:00,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 23 [2021-05-06 05:54:00,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631596392] [2021-05-06 05:54:00,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-06 05:54:00,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:00,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-06 05:54:00,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2021-05-06 05:54:00,667 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 20 states have internal predecessors, (50), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:01,247 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2021-05-06 05:54:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-06 05:54:01,247 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 20 states have internal predecessors, (50), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-05-06 05:54:01,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:01,248 INFO L225 Difference]: With dead ends: 101 [2021-05-06 05:54:01,248 INFO L226 Difference]: Without dead ends: 97 [2021-05-06 05:54:01,249 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 546.5ms TimeCoverageRelationStatistics Valid=449, Invalid=1111, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:54:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-05-06 05:54:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 90. [2021-05-06 05:54:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 85 states have (on average 1.188235294117647) internal successors, (101), 85 states have internal predecessors, (101), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2021-05-06 05:54:01,251 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 45 [2021-05-06 05:54:01,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:01,251 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2021-05-06 05:54:01,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 20 states have internal predecessors, (50), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2021-05-06 05:54:01,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-06 05:54:01,251 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:01,251 INFO L523 BasicCegarLoop]: trace histogram [16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:01,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:01,467 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1246804792, now seen corresponding path program 15 times [2021-05-06 05:54:01,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:01,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897524083] [2021-05-06 05:54:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:01,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:01,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897524083] [2021-05-06 05:54:01,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897524083] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:01,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510944004] [2021-05-06 05:54:01,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:01,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-05-06 05:54:01,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:01,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-06 05:54:01,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:01,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:01,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510944004] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:01,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:01,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 24 [2021-05-06 05:54:01,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368140248] [2021-05-06 05:54:01,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-06 05:54:01,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:01,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-06 05:54:01,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2021-05-06 05:54:01,792 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:02,299 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2021-05-06 05:54:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-06 05:54:02,300 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2021-05-06 05:54:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:02,300 INFO L225 Difference]: With dead ends: 106 [2021-05-06 05:54:02,300 INFO L226 Difference]: Without dead ends: 102 [2021-05-06 05:54:02,301 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 500.2ms TimeCoverageRelationStatistics Valid=501, Invalid=1221, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 05:54:02,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-05-06 05:54:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 95. [2021-05-06 05:54:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 90 states have (on average 1.1888888888888889) internal successors, (107), 90 states have internal predecessors, (107), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2021-05-06 05:54:02,303 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 47 [2021-05-06 05:54:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:02,303 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2021-05-06 05:54:02,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:02,303 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2021-05-06 05:54:02,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-06 05:54:02,303 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:02,303 INFO L523 BasicCegarLoop]: trace histogram [17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:02,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-06 05:54:02,521 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash 22277892, now seen corresponding path program 16 times [2021-05-06 05:54:02,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:02,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592511485] [2021-05-06 05:54:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:02,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:02,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:02,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592511485] [2021-05-06 05:54:02,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592511485] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:02,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115411891] [2021-05-06 05:54:02,706 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:02,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:54:02,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:02,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-06 05:54:02,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:02,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:02,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115411891] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:02,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:02,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 25 [2021-05-06 05:54:02,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042843736] [2021-05-06 05:54:02,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-06 05:54:02,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:02,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-06 05:54:02,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2021-05-06 05:54:02,880 INFO L87 Difference]: Start difference. First operand 95 states and 111 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 22 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:03,394 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2021-05-06 05:54:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-06 05:54:03,395 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 22 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-05-06 05:54:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:03,395 INFO L225 Difference]: With dead ends: 111 [2021-05-06 05:54:03,395 INFO L226 Difference]: Without dead ends: 107 [2021-05-06 05:54:03,396 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 513.3ms TimeCoverageRelationStatistics Valid=556, Invalid=1336, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:54:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-06 05:54:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2021-05-06 05:54:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.1894736842105262) internal successors, (113), 95 states have internal predecessors, (113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:03,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2021-05-06 05:54:03,398 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 49 [2021-05-06 05:54:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:03,398 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2021-05-06 05:54:03,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 22 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:03,398 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2021-05-06 05:54:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-06 05:54:03,399 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:03,399 INFO L523 BasicCegarLoop]: trace histogram [18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:03,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-06 05:54:03,608 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash -159974848, now seen corresponding path program 17 times [2021-05-06 05:54:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:03,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407241755] [2021-05-06 05:54:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:03,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:03,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:03,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407241755] [2021-05-06 05:54:03,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407241755] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:03,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411412163] [2021-05-06 05:54:03,823 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:03,917 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-05-06 05:54:03,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:03,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-06 05:54:03,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:03,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:03,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:04,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411412163] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:04,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:04,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 26 [2021-05-06 05:54:04,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734433491] [2021-05-06 05:54:04,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-06 05:54:04,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:04,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-06 05:54:04,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=428, Unknown=0, NotChecked=0, Total=650 [2021-05-06 05:54:04,059 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 23 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:04,638 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2021-05-06 05:54:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-06 05:54:04,639 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 23 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-05-06 05:54:04,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:04,639 INFO L225 Difference]: With dead ends: 116 [2021-05-06 05:54:04,639 INFO L226 Difference]: Without dead ends: 112 [2021-05-06 05:54:04,640 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 579.5ms TimeCoverageRelationStatistics Valid=614, Invalid=1456, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 05:54:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-05-06 05:54:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2021-05-06 05:54:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 100 states have (on average 1.19) internal successors, (119), 100 states have internal predecessors, (119), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2021-05-06 05:54:04,642 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 51 [2021-05-06 05:54:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:04,642 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2021-05-06 05:54:04,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.1538461538461537) internal successors, (56), 23 states have internal predecessors, (56), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2021-05-06 05:54:04,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-06 05:54:04,642 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:04,642 INFO L523 BasicCegarLoop]: trace histogram [19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:04,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:04,857 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:04,857 INFO L82 PathProgramCache]: Analyzing trace with hash 788801148, now seen corresponding path program 18 times [2021-05-06 05:54:04,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:04,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073072671] [2021-05-06 05:54:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:05,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:05,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073072671] [2021-05-06 05:54:05,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073072671] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:05,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981871315] [2021-05-06 05:54:05,053 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:05,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-05-06 05:54:05,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:05,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-06 05:54:05,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:05,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:05,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981871315] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:05,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:05,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 27 [2021-05-06 05:54:05,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568804605] [2021-05-06 05:54:05,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-06 05:54:05,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:05,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-06 05:54:05,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2021-05-06 05:54:05,234 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:05,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:05,834 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2021-05-06 05:54:05,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-06 05:54:05,834 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-06 05:54:05,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:05,835 INFO L225 Difference]: With dead ends: 121 [2021-05-06 05:54:05,835 INFO L226 Difference]: Without dead ends: 117 [2021-05-06 05:54:05,835 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 604.6ms TimeCoverageRelationStatistics Valid=675, Invalid=1581, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 05:54:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-05-06 05:54:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 110. [2021-05-06 05:54:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 105 states have internal predecessors, (125), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2021-05-06 05:54:05,838 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 53 [2021-05-06 05:54:05,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:05,838 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2021-05-06 05:54:05,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.1481481481481484) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2021-05-06 05:54:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-06 05:54:05,838 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:05,839 INFO L523 BasicCegarLoop]: trace histogram [20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:06,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:06,058 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:06,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:06,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2029466552, now seen corresponding path program 19 times [2021-05-06 05:54:06,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:06,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131000667] [2021-05-06 05:54:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:06,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:06,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:06,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131000667] [2021-05-06 05:54:06,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131000667] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:06,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043434905] [2021-05-06 05:54:06,288 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:06,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-06 05:54:06,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:06,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:06,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043434905] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:06,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:06,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 28 [2021-05-06 05:54:06,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436611203] [2021-05-06 05:54:06,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 05:54:06,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:06,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 05:54:06,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=491, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:54:06,546 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 25 states have internal predecessors, (60), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:07,296 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2021-05-06 05:54:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-06 05:54:07,297 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 25 states have internal predecessors, (60), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-05-06 05:54:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:07,297 INFO L225 Difference]: With dead ends: 126 [2021-05-06 05:54:07,297 INFO L226 Difference]: Without dead ends: 122 [2021-05-06 05:54:07,298 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 710.1ms TimeCoverageRelationStatistics Valid=739, Invalid=1711, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 05:54:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-05-06 05:54:07,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 115. [2021-05-06 05:54:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.190909090909091) internal successors, (131), 110 states have internal predecessors, (131), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2021-05-06 05:54:07,300 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 55 [2021-05-06 05:54:07,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:07,300 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2021-05-06 05:54:07,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 25 states have internal predecessors, (60), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:07,300 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2021-05-06 05:54:07,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-06 05:54:07,301 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:07,301 INFO L523 BasicCegarLoop]: trace histogram [21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:07,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:07,517 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:07,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:07,518 INFO L82 PathProgramCache]: Analyzing trace with hash 308011508, now seen corresponding path program 20 times [2021-05-06 05:54:07,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:07,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869626478] [2021-05-06 05:54:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:07,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:07,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:07,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869626478] [2021-05-06 05:54:07,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869626478] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:07,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655436022] [2021-05-06 05:54:07,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:07,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:54:07,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:07,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2021-05-06 05:54:07,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:07,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:07,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:08,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655436022] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:08,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:08,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 29 [2021-05-06 05:54:08,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766516545] [2021-05-06 05:54:08,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-06 05:54:08,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:08,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-06 05:54:08,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=524, Unknown=0, NotChecked=0, Total=812 [2021-05-06 05:54:08,003 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 26 states have internal predecessors, (62), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:08,684 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2021-05-06 05:54:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-06 05:54:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 26 states have internal predecessors, (62), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-05-06 05:54:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:08,685 INFO L225 Difference]: With dead ends: 131 [2021-05-06 05:54:08,685 INFO L226 Difference]: Without dead ends: 127 [2021-05-06 05:54:08,686 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 713.6ms TimeCoverageRelationStatistics Valid=806, Invalid=1846, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:54:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-05-06 05:54:08,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2021-05-06 05:54:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 115 states have (on average 1.191304347826087) internal successors, (137), 115 states have internal predecessors, (137), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:08,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2021-05-06 05:54:08,688 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 57 [2021-05-06 05:54:08,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:08,688 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2021-05-06 05:54:08,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 26 states have internal predecessors, (62), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:08,688 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2021-05-06 05:54:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-06 05:54:08,688 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:08,688 INFO L523 BasicCegarLoop]: trace histogram [22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:08,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-05-06 05:54:08,906 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:08,906 INFO L82 PathProgramCache]: Analyzing trace with hash -447876816, now seen corresponding path program 21 times [2021-05-06 05:54:08,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:08,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699764595] [2021-05-06 05:54:08,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:09,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:09,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699764595] [2021-05-06 05:54:09,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699764595] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:09,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580833336] [2021-05-06 05:54:09,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:09,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-05-06 05:54:09,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:09,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-06 05:54:09,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:09,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:09,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580833336] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:09,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:09,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 30 [2021-05-06 05:54:09,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182966241] [2021-05-06 05:54:09,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-06 05:54:09,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:09,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-06 05:54:09,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=558, Unknown=0, NotChecked=0, Total=870 [2021-05-06 05:54:09,364 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 27 states have internal predecessors, (64), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:10,106 INFO L93 Difference]: Finished difference Result 136 states and 159 transitions. [2021-05-06 05:54:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-06 05:54:10,107 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 27 states have internal predecessors, (64), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-06 05:54:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:10,107 INFO L225 Difference]: With dead ends: 136 [2021-05-06 05:54:10,107 INFO L226 Difference]: Without dead ends: 132 [2021-05-06 05:54:10,108 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 744.6ms TimeCoverageRelationStatistics Valid=876, Invalid=1986, Unknown=0, NotChecked=0, Total=2862 [2021-05-06 05:54:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-05-06 05:54:10,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 125. [2021-05-06 05:54:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 120 states have (on average 1.1916666666666667) internal successors, (143), 120 states have internal predecessors, (143), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2021-05-06 05:54:10,110 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 59 [2021-05-06 05:54:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:10,110 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2021-05-06 05:54:10,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 27 states have internal predecessors, (64), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2021-05-06 05:54:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-06 05:54:10,111 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:10,111 INFO L523 BasicCegarLoop]: trace histogram [23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:10,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-05-06 05:54:10,329 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:10,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1007083156, now seen corresponding path program 22 times [2021-05-06 05:54:10,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:10,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002439816] [2021-05-06 05:54:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:10,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:10,589 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:10,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:10,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002439816] [2021-05-06 05:54:10,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002439816] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:10,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119637763] [2021-05-06 05:54:10,589 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:10,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:54:10,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:10,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 26 conjunts are in the unsatisfiable core [2021-05-06 05:54:10,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:10,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:10,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119637763] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:10,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:10,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 31 [2021-05-06 05:54:10,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701237388] [2021-05-06 05:54:10,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-06 05:54:10,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-06 05:54:10,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=593, Unknown=0, NotChecked=0, Total=930 [2021-05-06 05:54:10,775 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 28 states have internal predecessors, (66), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:11,577 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2021-05-06 05:54:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-06 05:54:11,577 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 28 states have internal predecessors, (66), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-05-06 05:54:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:11,578 INFO L225 Difference]: With dead ends: 141 [2021-05-06 05:54:11,578 INFO L226 Difference]: Without dead ends: 137 [2021-05-06 05:54:11,579 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 791.3ms TimeCoverageRelationStatistics Valid=949, Invalid=2131, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:54:11,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-05-06 05:54:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 130. [2021-05-06 05:54:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.192) internal successors, (149), 125 states have internal predecessors, (149), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 153 transitions. [2021-05-06 05:54:11,581 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 153 transitions. Word has length 61 [2021-05-06 05:54:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:11,581 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 153 transitions. [2021-05-06 05:54:11,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 28 states have internal predecessors, (66), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 153 transitions. [2021-05-06 05:54:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-06 05:54:11,582 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:11,582 INFO L523 BasicCegarLoop]: trace histogram [24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:11,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:11,797 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:11,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:11,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1533463896, now seen corresponding path program 23 times [2021-05-06 05:54:11,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:11,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165272089] [2021-05-06 05:54:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:12,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:12,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:12,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165272089] [2021-05-06 05:54:12,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165272089] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:12,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636256323] [2021-05-06 05:54:12,063 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:12,122 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-05-06 05:54:12,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:12,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-06 05:54:12,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:12,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:12,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636256323] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:12,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:12,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 32 [2021-05-06 05:54:12,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919631254] [2021-05-06 05:54:12,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 05:54:12,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:12,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 05:54:12,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=629, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:54:12,251 INFO L87 Difference]: Start difference. First operand 130 states and 153 transitions. Second operand has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:13,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:13,061 INFO L93 Difference]: Finished difference Result 146 states and 171 transitions. [2021-05-06 05:54:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-06 05:54:13,061 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-06 05:54:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:13,062 INFO L225 Difference]: With dead ends: 146 [2021-05-06 05:54:13,062 INFO L226 Difference]: Without dead ends: 142 [2021-05-06 05:54:13,062 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 825.0ms TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 05:54:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-05-06 05:54:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 135. [2021-05-06 05:54:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 130 states have internal predecessors, (155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 159 transitions. [2021-05-06 05:54:13,065 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 159 transitions. Word has length 63 [2021-05-06 05:54:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:13,065 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 159 transitions. [2021-05-06 05:54:13,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.125) internal successors, (68), 29 states have internal predecessors, (68), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:13,065 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 159 transitions. [2021-05-06 05:54:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-06 05:54:13,065 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:13,065 INFO L523 BasicCegarLoop]: trace histogram [25, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:13,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-05-06 05:54:13,281 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:13,282 INFO L82 PathProgramCache]: Analyzing trace with hash -579214108, now seen corresponding path program 24 times [2021-05-06 05:54:13,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:13,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597133640] [2021-05-06 05:54:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:13,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:13,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:13,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597133640] [2021-05-06 05:54:13,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597133640] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:13,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709442689] [2021-05-06 05:54:13,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:13,725 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-05-06 05:54:13,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:13,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-06 05:54:13,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:13,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:13,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709442689] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:13,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:13,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29] total 33 [2021-05-06 05:54:13,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586091112] [2021-05-06 05:54:13,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-06 05:54:13,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:13,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-06 05:54:13,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=666, Unknown=0, NotChecked=0, Total=1056 [2021-05-06 05:54:13,851 INFO L87 Difference]: Start difference. First operand 135 states and 159 transitions. Second operand has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 30 states have internal predecessors, (70), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:14,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:14,710 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2021-05-06 05:54:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-06 05:54:14,710 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 30 states have internal predecessors, (70), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2021-05-06 05:54:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:14,710 INFO L225 Difference]: With dead ends: 151 [2021-05-06 05:54:14,711 INFO L226 Difference]: Without dead ends: 147 [2021-05-06 05:54:14,711 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 901.0ms TimeCoverageRelationStatistics Valid=1104, Invalid=2436, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 05:54:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-05-06 05:54:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 140. [2021-05-06 05:54:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 135 states have internal predecessors, (161), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:14,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2021-05-06 05:54:14,713 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 65 [2021-05-06 05:54:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:14,714 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2021-05-06 05:54:14,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 30 states have internal predecessors, (70), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2021-05-06 05:54:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-05-06 05:54:14,714 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:14,714 INFO L523 BasicCegarLoop]: trace histogram [26, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:14,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:14,930 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:14,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:14,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1626798112, now seen corresponding path program 25 times [2021-05-06 05:54:14,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:14,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880017680] [2021-05-06 05:54:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:15,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:15,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880017680] [2021-05-06 05:54:15,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880017680] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:15,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901983339] [2021-05-06 05:54:15,241 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:15,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 29 conjunts are in the unsatisfiable core [2021-05-06 05:54:15,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:15,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:15,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901983339] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:15,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:15,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 34 [2021-05-06 05:54:15,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656543831] [2021-05-06 05:54:15,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-06 05:54:15,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:15,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-06 05:54:15,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=704, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 05:54:15,430 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 31 states have internal predecessors, (72), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:16,351 INFO L93 Difference]: Finished difference Result 156 states and 183 transitions. [2021-05-06 05:54:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-06 05:54:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 31 states have internal predecessors, (72), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2021-05-06 05:54:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:16,353 INFO L225 Difference]: With dead ends: 156 [2021-05-06 05:54:16,353 INFO L226 Difference]: Without dead ends: 152 [2021-05-06 05:54:16,353 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 956.0ms TimeCoverageRelationStatistics Valid=1186, Invalid=2596, Unknown=0, NotChecked=0, Total=3782 [2021-05-06 05:54:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-05-06 05:54:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2021-05-06 05:54:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 140 states have (on average 1.1928571428571428) internal successors, (167), 140 states have internal predecessors, (167), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2021-05-06 05:54:16,356 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 67 [2021-05-06 05:54:16,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:16,356 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2021-05-06 05:54:16,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 31 states have internal predecessors, (72), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2021-05-06 05:54:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-06 05:54:16,357 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:16,357 INFO L523 BasicCegarLoop]: trace histogram [27, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:16,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-06 05:54:16,574 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:16,575 INFO L82 PathProgramCache]: Analyzing trace with hash -109302692, now seen corresponding path program 26 times [2021-05-06 05:54:16,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:16,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101788920] [2021-05-06 05:54:16,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:16,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:16,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:16,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101788920] [2021-05-06 05:54:16,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101788920] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:16,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195979032] [2021-05-06 05:54:16,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:16,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:54:16,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:16,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2021-05-06 05:54:16,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:16,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:16,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:16,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:16,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:16,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:16,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:17,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195979032] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:17,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:17,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31] total 35 [2021-05-06 05:54:17,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672520950] [2021-05-06 05:54:17,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-06 05:54:17,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:17,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-06 05:54:17,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=743, Unknown=0, NotChecked=0, Total=1190 [2021-05-06 05:54:17,108 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 32 states have internal predecessors, (74), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:18,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:18,167 INFO L93 Difference]: Finished difference Result 161 states and 189 transitions. [2021-05-06 05:54:18,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-06 05:54:18,167 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 32 states have internal predecessors, (74), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2021-05-06 05:54:18,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:18,168 INFO L225 Difference]: With dead ends: 161 [2021-05-06 05:54:18,168 INFO L226 Difference]: Without dead ends: 157 [2021-05-06 05:54:18,170 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1079.4ms TimeCoverageRelationStatistics Valid=1271, Invalid=2761, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:54:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-05-06 05:54:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2021-05-06 05:54:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.193103448275862) internal successors, (173), 145 states have internal predecessors, (173), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2021-05-06 05:54:18,173 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 69 [2021-05-06 05:54:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:18,173 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2021-05-06 05:54:18,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 32 states have internal predecessors, (74), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2021-05-06 05:54:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-06 05:54:18,174 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:18,174 INFO L523 BasicCegarLoop]: trace histogram [28, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:18,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-05-06 05:54:18,399 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -2054864488, now seen corresponding path program 27 times [2021-05-06 05:54:18,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:18,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806479148] [2021-05-06 05:54:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:18,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:18,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:18,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806479148] [2021-05-06 05:54:18,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806479148] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:18,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991417614] [2021-05-06 05:54:18,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:18,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-05-06 05:54:18,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:18,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-06 05:54:18,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:18,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:18,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991417614] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:18,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:18,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 36 [2021-05-06 05:54:18,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995102914] [2021-05-06 05:54:18,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-06 05:54:18,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:18,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-06 05:54:18,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=783, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:54:18,999 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 33 states have internal predecessors, (76), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:20,009 INFO L93 Difference]: Finished difference Result 166 states and 195 transitions. [2021-05-06 05:54:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-06 05:54:20,009 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 33 states have internal predecessors, (76), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-05-06 05:54:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:20,010 INFO L225 Difference]: With dead ends: 166 [2021-05-06 05:54:20,010 INFO L226 Difference]: Without dead ends: 162 [2021-05-06 05:54:20,011 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1078.1ms TimeCoverageRelationStatistics Valid=1359, Invalid=2931, Unknown=0, NotChecked=0, Total=4290 [2021-05-06 05:54:20,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-05-06 05:54:20,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 155. [2021-05-06 05:54:20,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 150 states have (on average 1.1933333333333334) internal successors, (179), 150 states have internal predecessors, (179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 183 transitions. [2021-05-06 05:54:20,014 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 183 transitions. Word has length 71 [2021-05-06 05:54:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:20,014 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 183 transitions. [2021-05-06 05:54:20,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.111111111111111) internal successors, (76), 33 states have internal predecessors, (76), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 183 transitions. [2021-05-06 05:54:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-05-06 05:54:20,014 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:20,014 INFO L523 BasicCegarLoop]: trace histogram [29, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:20,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-05-06 05:54:20,231 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:20,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:20,231 INFO L82 PathProgramCache]: Analyzing trace with hash 865990612, now seen corresponding path program 28 times [2021-05-06 05:54:20,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:20,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658807557] [2021-05-06 05:54:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:20,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:20,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:20,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658807557] [2021-05-06 05:54:20,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658807557] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:20,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381239745] [2021-05-06 05:54:20,626 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:20,694 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:54:20,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:20,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 32 conjunts are in the unsatisfiable core [2021-05-06 05:54:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:20,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:20,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381239745] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:20,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:20,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 37 [2021-05-06 05:54:20,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789343410] [2021-05-06 05:54:20,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-06 05:54:20,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-06 05:54:20,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=824, Unknown=0, NotChecked=0, Total=1332 [2021-05-06 05:54:20,847 INFO L87 Difference]: Start difference. First operand 155 states and 183 transitions. Second operand has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 34 states have internal predecessors, (78), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:21,938 INFO L93 Difference]: Finished difference Result 171 states and 201 transitions. [2021-05-06 05:54:21,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-06 05:54:21,938 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 34 states have internal predecessors, (78), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2021-05-06 05:54:21,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:21,939 INFO L225 Difference]: With dead ends: 171 [2021-05-06 05:54:21,939 INFO L226 Difference]: Without dead ends: 167 [2021-05-06 05:54:21,940 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1193.4ms TimeCoverageRelationStatistics Valid=1450, Invalid=3106, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:54:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-05-06 05:54:21,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 160. [2021-05-06 05:54:21,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 155 states have internal predecessors, (185), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:21,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2021-05-06 05:54:21,942 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 73 [2021-05-06 05:54:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:21,942 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2021-05-06 05:54:21,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.108108108108108) internal successors, (78), 34 states have internal predecessors, (78), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2021-05-06 05:54:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-05-06 05:54:21,943 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:21,943 INFO L523 BasicCegarLoop]: trace histogram [30, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:22,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:22,160 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:22,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1100869872, now seen corresponding path program 29 times [2021-05-06 05:54:22,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:22,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584999008] [2021-05-06 05:54:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:22,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:22,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:22,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584999008] [2021-05-06 05:54:22,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584999008] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:22,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818867442] [2021-05-06 05:54:22,551 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:22,619 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-05-06 05:54:22,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:22,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-06 05:54:22,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:22,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:22,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818867442] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:22,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:22,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 38 [2021-05-06 05:54:22,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951776002] [2021-05-06 05:54:22,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-06 05:54:22,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:22,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-06 05:54:22,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=866, Unknown=0, NotChecked=0, Total=1406 [2021-05-06 05:54:22,849 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 35 states have internal predecessors, (80), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:24,105 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2021-05-06 05:54:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-06 05:54:24,105 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 35 states have internal predecessors, (80), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2021-05-06 05:54:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:24,108 INFO L225 Difference]: With dead ends: 176 [2021-05-06 05:54:24,108 INFO L226 Difference]: Without dead ends: 172 [2021-05-06 05:54:24,109 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1267.7ms TimeCoverageRelationStatistics Valid=1544, Invalid=3286, Unknown=0, NotChecked=0, Total=4830 [2021-05-06 05:54:24,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-05-06 05:54:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2021-05-06 05:54:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.19375) internal successors, (191), 160 states have internal predecessors, (191), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 195 transitions. [2021-05-06 05:54:24,138 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 195 transitions. Word has length 75 [2021-05-06 05:54:24,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:24,138 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 195 transitions. [2021-05-06 05:54:24,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 35 states have internal predecessors, (80), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 195 transitions. [2021-05-06 05:54:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-05-06 05:54:24,139 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:24,139 INFO L523 BasicCegarLoop]: trace histogram [31, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:24,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-05-06 05:54:24,356 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1468184756, now seen corresponding path program 30 times [2021-05-06 05:54:24,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:24,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752069527] [2021-05-06 05:54:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:24,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:24,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:24,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752069527] [2021-05-06 05:54:24,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752069527] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:24,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817710188] [2021-05-06 05:54:24,809 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:24,885 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-05-06 05:54:24,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:24,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-06 05:54:24,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:24,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:24,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:25,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:25,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:25,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:25,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817710188] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:25,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:25,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 39 [2021-05-06 05:54:25,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156917816] [2021-05-06 05:54:25,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-06 05:54:25,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-06 05:54:25,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=909, Unknown=0, NotChecked=0, Total=1482 [2021-05-06 05:54:25,044 INFO L87 Difference]: Start difference. First operand 165 states and 195 transitions. Second operand has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 36 states have internal predecessors, (82), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:26,292 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2021-05-06 05:54:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-06 05:54:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 36 states have internal predecessors, (82), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2021-05-06 05:54:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:26,294 INFO L225 Difference]: With dead ends: 181 [2021-05-06 05:54:26,294 INFO L226 Difference]: Without dead ends: 177 [2021-05-06 05:54:26,294 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 1334.5ms TimeCoverageRelationStatistics Valid=1641, Invalid=3471, Unknown=0, NotChecked=0, Total=5112 [2021-05-06 05:54:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-05-06 05:54:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 170. [2021-05-06 05:54:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.1939393939393939) internal successors, (197), 165 states have internal predecessors, (197), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2021-05-06 05:54:26,296 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 77 [2021-05-06 05:54:26,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:26,297 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2021-05-06 05:54:26,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 36 states have internal predecessors, (82), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2021-05-06 05:54:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-06 05:54:26,297 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:26,297 INFO L523 BasicCegarLoop]: trace histogram [32, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:26,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:26,513 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2024497288, now seen corresponding path program 31 times [2021-05-06 05:54:26,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:26,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100647473] [2021-05-06 05:54:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:26,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:26,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100647473] [2021-05-06 05:54:26,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100647473] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:26,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95004030] [2021-05-06 05:54:26,948 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:27,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 35 conjunts are in the unsatisfiable core [2021-05-06 05:54:27,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:27,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:27,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95004030] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:27,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:27,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 40 [2021-05-06 05:54:27,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484343957] [2021-05-06 05:54:27,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 05:54:27,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:27,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 05:54:27,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=607, Invalid=953, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:54:27,157 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 40 states, 40 states have (on average 2.1) internal successors, (84), 37 states have internal predecessors, (84), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:28,406 INFO L93 Difference]: Finished difference Result 186 states and 219 transitions. [2021-05-06 05:54:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-06 05:54:28,406 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 37 states have internal predecessors, (84), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2021-05-06 05:54:28,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:28,407 INFO L225 Difference]: With dead ends: 186 [2021-05-06 05:54:28,407 INFO L226 Difference]: Without dead ends: 182 [2021-05-06 05:54:28,407 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1335.3ms TimeCoverageRelationStatistics Valid=1741, Invalid=3661, Unknown=0, NotChecked=0, Total=5402 [2021-05-06 05:54:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-05-06 05:54:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2021-05-06 05:54:28,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.1941176470588235) internal successors, (203), 170 states have internal predecessors, (203), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 207 transitions. [2021-05-06 05:54:28,409 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 207 transitions. Word has length 79 [2021-05-06 05:54:28,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:28,409 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 207 transitions. [2021-05-06 05:54:28,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 37 states have internal predecessors, (84), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 207 transitions. [2021-05-06 05:54:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-06 05:54:28,410 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:28,410 INFO L523 BasicCegarLoop]: trace histogram [33, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:28,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-05-06 05:54:28,631 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:28,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:28,631 INFO L82 PathProgramCache]: Analyzing trace with hash -172483900, now seen corresponding path program 32 times [2021-05-06 05:54:28,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:28,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969923320] [2021-05-06 05:54:28,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:29,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:29,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969923320] [2021-05-06 05:54:29,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969923320] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:29,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745969967] [2021-05-06 05:54:29,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:29,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:54:29,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:29,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-06 05:54:29,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:29,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:29,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745969967] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:29,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:29,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37] total 41 [2021-05-06 05:54:29,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204189629] [2021-05-06 05:54:29,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-06 05:54:29,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:29,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-06 05:54:29,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=642, Invalid=998, Unknown=0, NotChecked=0, Total=1640 [2021-05-06 05:54:29,310 INFO L87 Difference]: Start difference. First operand 175 states and 207 transitions. Second operand has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 38 states have internal predecessors, (86), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:30,581 INFO L93 Difference]: Finished difference Result 191 states and 225 transitions. [2021-05-06 05:54:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-06 05:54:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 38 states have internal predecessors, (86), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2021-05-06 05:54:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:30,582 INFO L225 Difference]: With dead ends: 191 [2021-05-06 05:54:30,582 INFO L226 Difference]: Without dead ends: 187 [2021-05-06 05:54:30,582 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 1389.2ms TimeCoverageRelationStatistics Valid=1844, Invalid=3856, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:54:30,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-05-06 05:54:30,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 180. [2021-05-06 05:54:30,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.1942857142857144) internal successors, (209), 175 states have internal predecessors, (209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:30,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 213 transitions. [2021-05-06 05:54:30,598 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 213 transitions. Word has length 81 [2021-05-06 05:54:30,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:30,598 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 213 transitions. [2021-05-06 05:54:30,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.097560975609756) internal successors, (86), 38 states have internal predecessors, (86), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 213 transitions. [2021-05-06 05:54:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-06 05:54:30,598 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:30,598 INFO L523 BasicCegarLoop]: trace histogram [34, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:30,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-05-06 05:54:30,813 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:30,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:30,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1652504064, now seen corresponding path program 33 times [2021-05-06 05:54:30,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:30,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442313239] [2021-05-06 05:54:30,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:31,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:31,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:31,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442313239] [2021-05-06 05:54:31,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442313239] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:31,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088193346] [2021-05-06 05:54:31,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:31,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-05-06 05:54:31,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:31,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-06 05:54:31,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:31,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:31,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088193346] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:31,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:31,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 42 [2021-05-06 05:54:31,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901679171] [2021-05-06 05:54:31,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-06 05:54:31,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:31,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-06 05:54:31,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=678, Invalid=1044, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 05:54:31,746 INFO L87 Difference]: Start difference. First operand 180 states and 213 transitions. Second operand has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 39 states have internal predecessors, (88), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:32,867 INFO L93 Difference]: Finished difference Result 196 states and 231 transitions. [2021-05-06 05:54:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-06 05:54:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 39 states have internal predecessors, (88), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-06 05:54:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:32,868 INFO L225 Difference]: With dead ends: 196 [2021-05-06 05:54:32,868 INFO L226 Difference]: Without dead ends: 192 [2021-05-06 05:54:32,869 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1424.9ms TimeCoverageRelationStatistics Valid=1950, Invalid=4056, Unknown=0, NotChecked=0, Total=6006 [2021-05-06 05:54:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-05-06 05:54:32,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 185. [2021-05-06 05:54:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.1944444444444444) internal successors, (215), 180 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 219 transitions. [2021-05-06 05:54:32,871 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 219 transitions. Word has length 83 [2021-05-06 05:54:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:32,871 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 219 transitions. [2021-05-06 05:54:32,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 2.0952380952380953) internal successors, (88), 39 states have internal predecessors, (88), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 219 transitions. [2021-05-06 05:54:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-05-06 05:54:32,872 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:32,872 INFO L523 BasicCegarLoop]: trace histogram [35, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:33,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-06 05:54:33,085 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:33,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:33,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1175686596, now seen corresponding path program 34 times [2021-05-06 05:54:33,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:33,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978419484] [2021-05-06 05:54:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:33,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:33,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:33,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978419484] [2021-05-06 05:54:33,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978419484] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:33,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262783117] [2021-05-06 05:54:33,654 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:33,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:54:33,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:33,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 38 conjunts are in the unsatisfiable core [2021-05-06 05:54:33,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:33,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:33,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262783117] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:33,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:33,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 43 [2021-05-06 05:54:33,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375752342] [2021-05-06 05:54:33,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-06 05:54:33,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:33,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-06 05:54:33,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=715, Invalid=1091, Unknown=0, NotChecked=0, Total=1806 [2021-05-06 05:54:33,901 INFO L87 Difference]: Start difference. First operand 185 states and 219 transitions. Second operand has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 40 states have internal predecessors, (90), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:35,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:35,433 INFO L93 Difference]: Finished difference Result 201 states and 237 transitions. [2021-05-06 05:54:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-06 05:54:35,433 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 40 states have internal predecessors, (90), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2021-05-06 05:54:35,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:35,434 INFO L225 Difference]: With dead ends: 201 [2021-05-06 05:54:35,434 INFO L226 Difference]: Without dead ends: 197 [2021-05-06 05:54:35,435 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 1658.2ms TimeCoverageRelationStatistics Valid=2059, Invalid=4261, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:54:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-05-06 05:54:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 190. [2021-05-06 05:54:35,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.1945945945945946) internal successors, (221), 185 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2021-05-06 05:54:35,438 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 85 [2021-05-06 05:54:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:35,438 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2021-05-06 05:54:35,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 40 states have internal predecessors, (90), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2021-05-06 05:54:35,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-05-06 05:54:35,439 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:35,439 INFO L523 BasicCegarLoop]: trace histogram [36, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:35,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-05-06 05:54:35,653 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:35,653 INFO L82 PathProgramCache]: Analyzing trace with hash -352612488, now seen corresponding path program 35 times [2021-05-06 05:54:35,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:35,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452843792] [2021-05-06 05:54:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:36,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:36,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:36,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452843792] [2021-05-06 05:54:36,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452843792] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:36,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620937153] [2021-05-06 05:54:36,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:36,374 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-05-06 05:54:36,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:36,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-06 05:54:36,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:36,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:36,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:36,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620937153] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:36,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:36,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 44 [2021-05-06 05:54:36,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687689509] [2021-05-06 05:54:36,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-06 05:54:36,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:36,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-06 05:54:36,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=753, Invalid=1139, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:54:36,570 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand has 44 states, 44 states have (on average 2.090909090909091) internal successors, (92), 41 states have internal predecessors, (92), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:38,044 INFO L93 Difference]: Finished difference Result 206 states and 243 transitions. [2021-05-06 05:54:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-06 05:54:38,044 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.090909090909091) internal successors, (92), 41 states have internal predecessors, (92), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2021-05-06 05:54:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:38,045 INFO L225 Difference]: With dead ends: 206 [2021-05-06 05:54:38,045 INFO L226 Difference]: Without dead ends: 202 [2021-05-06 05:54:38,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 1705.4ms TimeCoverageRelationStatistics Valid=2171, Invalid=4471, Unknown=0, NotChecked=0, Total=6642 [2021-05-06 05:54:38,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-05-06 05:54:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 195. [2021-05-06 05:54:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.194736842105263) internal successors, (227), 190 states have internal predecessors, (227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2021-05-06 05:54:38,048 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 87 [2021-05-06 05:54:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:38,048 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2021-05-06 05:54:38,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.090909090909091) internal successors, (92), 41 states have internal predecessors, (92), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2021-05-06 05:54:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-06 05:54:38,049 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:38,049 INFO L523 BasicCegarLoop]: trace histogram [37, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:38,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-05-06 05:54:38,262 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:38,262 INFO L82 PathProgramCache]: Analyzing trace with hash 347622836, now seen corresponding path program 36 times [2021-05-06 05:54:38,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:38,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216107811] [2021-05-06 05:54:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:38,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:38,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:38,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216107811] [2021-05-06 05:54:38,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216107811] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:38,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317835051] [2021-05-06 05:54:38,850 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:38,944 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-05-06 05:54:38,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:38,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 40 conjunts are in the unsatisfiable core [2021-05-06 05:54:38,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:38,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:38,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:39,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317835051] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:39,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:39,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41] total 45 [2021-05-06 05:54:39,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161386544] [2021-05-06 05:54:39,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-06 05:54:39,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:39,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-06 05:54:39,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=792, Invalid=1188, Unknown=0, NotChecked=0, Total=1980 [2021-05-06 05:54:39,118 INFO L87 Difference]: Start difference. First operand 195 states and 231 transitions. Second operand has 45 states, 45 states have (on average 2.088888888888889) internal successors, (94), 42 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:40,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:40,619 INFO L93 Difference]: Finished difference Result 211 states and 249 transitions. [2021-05-06 05:54:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-06 05:54:40,619 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.088888888888889) internal successors, (94), 42 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2021-05-06 05:54:40,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:40,620 INFO L225 Difference]: With dead ends: 211 [2021-05-06 05:54:40,620 INFO L226 Difference]: Without dead ends: 207 [2021-05-06 05:54:40,621 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 1681.8ms TimeCoverageRelationStatistics Valid=2286, Invalid=4686, Unknown=0, NotChecked=0, Total=6972 [2021-05-06 05:54:40,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-05-06 05:54:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 200. [2021-05-06 05:54:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.1948717948717948) internal successors, (233), 195 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 237 transitions. [2021-05-06 05:54:40,623 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 237 transitions. Word has length 89 [2021-05-06 05:54:40,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:40,623 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 237 transitions. [2021-05-06 05:54:40,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.088888888888889) internal successors, (94), 42 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:40,623 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 237 transitions. [2021-05-06 05:54:40,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-06 05:54:40,624 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:40,624 INFO L523 BasicCegarLoop]: trace histogram [38, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:40,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-05-06 05:54:40,841 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1036096272, now seen corresponding path program 37 times [2021-05-06 05:54:40,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:40,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297435052] [2021-05-06 05:54:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:41,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:41,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297435052] [2021-05-06 05:54:41,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297435052] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:41,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489757191] [2021-05-06 05:54:41,460 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:41,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 41 conjunts are in the unsatisfiable core [2021-05-06 05:54:41,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:41,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:41,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489757191] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:41,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:41,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 46 [2021-05-06 05:54:41,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343809867] [2021-05-06 05:54:41,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-06 05:54:41,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:41,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-06 05:54:41,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=832, Invalid=1238, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 05:54:41,698 INFO L87 Difference]: Start difference. First operand 200 states and 237 transitions. Second operand has 46 states, 46 states have (on average 2.0869565217391304) internal successors, (96), 43 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:43,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:43,222 INFO L93 Difference]: Finished difference Result 216 states and 255 transitions. [2021-05-06 05:54:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-06 05:54:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.0869565217391304) internal successors, (96), 43 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2021-05-06 05:54:43,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:43,223 INFO L225 Difference]: With dead ends: 216 [2021-05-06 05:54:43,223 INFO L226 Difference]: Without dead ends: 212 [2021-05-06 05:54:43,224 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 1744.9ms TimeCoverageRelationStatistics Valid=2404, Invalid=4906, Unknown=0, NotChecked=0, Total=7310 [2021-05-06 05:54:43,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-05-06 05:54:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 205. [2021-05-06 05:54:43,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.195) internal successors, (239), 200 states have internal predecessors, (239), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 243 transitions. [2021-05-06 05:54:43,226 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 243 transitions. Word has length 91 [2021-05-06 05:54:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:43,226 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 243 transitions. [2021-05-06 05:54:43,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.0869565217391304) internal successors, (96), 43 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 243 transitions. [2021-05-06 05:54:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-05-06 05:54:43,226 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:43,227 INFO L523 BasicCegarLoop]: trace histogram [39, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:43,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-05-06 05:54:43,443 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:43,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:43,443 INFO L82 PathProgramCache]: Analyzing trace with hash 649702700, now seen corresponding path program 38 times [2021-05-06 05:54:43,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:43,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326809420] [2021-05-06 05:54:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:44,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:44,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:44,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326809420] [2021-05-06 05:54:44,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326809420] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:44,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351320234] [2021-05-06 05:54:44,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:44,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:54:44,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:44,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 42 conjunts are in the unsatisfiable core [2021-05-06 05:54:44,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:44,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:44,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351320234] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:44,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:44,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 43] total 47 [2021-05-06 05:54:44,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659369922] [2021-05-06 05:54:44,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-06 05:54:44,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:44,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-06 05:54:44,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=873, Invalid=1289, Unknown=0, NotChecked=0, Total=2162 [2021-05-06 05:54:44,307 INFO L87 Difference]: Start difference. First operand 205 states and 243 transitions. Second operand has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 44 states have internal predecessors, (98), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:45,885 INFO L93 Difference]: Finished difference Result 221 states and 261 transitions. [2021-05-06 05:54:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-06 05:54:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 44 states have internal predecessors, (98), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2021-05-06 05:54:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:45,886 INFO L225 Difference]: With dead ends: 221 [2021-05-06 05:54:45,886 INFO L226 Difference]: Without dead ends: 217 [2021-05-06 05:54:45,887 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 1825.6ms TimeCoverageRelationStatistics Valid=2525, Invalid=5131, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:54:45,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-05-06 05:54:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 210. [2021-05-06 05:54:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.1951219512195121) internal successors, (245), 205 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 249 transitions. [2021-05-06 05:54:45,889 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 249 transitions. Word has length 93 [2021-05-06 05:54:45,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:45,889 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 249 transitions. [2021-05-06 05:54:45,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 44 states have internal predecessors, (98), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 249 transitions. [2021-05-06 05:54:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-06 05:54:45,890 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:45,890 INFO L523 BasicCegarLoop]: trace histogram [40, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:46,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-06 05:54:46,106 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:46,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:46,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1499844200, now seen corresponding path program 39 times [2021-05-06 05:54:46,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:46,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534293374] [2021-05-06 05:54:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:46,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:46,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:46,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534293374] [2021-05-06 05:54:46,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534293374] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:46,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285671047] [2021-05-06 05:54:46,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:46,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-05-06 05:54:46,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:46,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 43 conjunts are in the unsatisfiable core [2021-05-06 05:54:46,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:46,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:46,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:47,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285671047] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:47,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:47,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44] total 48 [2021-05-06 05:54:47,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840015139] [2021-05-06 05:54:47,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-06 05:54:47,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:47,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-06 05:54:47,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=915, Invalid=1341, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 05:54:47,140 INFO L87 Difference]: Start difference. First operand 210 states and 249 transitions. Second operand has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 45 states have internal predecessors, (100), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:48,767 INFO L93 Difference]: Finished difference Result 226 states and 267 transitions. [2021-05-06 05:54:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-06 05:54:48,767 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 45 states have internal predecessors, (100), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-05-06 05:54:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:48,768 INFO L225 Difference]: With dead ends: 226 [2021-05-06 05:54:48,768 INFO L226 Difference]: Without dead ends: 222 [2021-05-06 05:54:48,768 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1954.5ms TimeCoverageRelationStatistics Valid=2649, Invalid=5361, Unknown=0, NotChecked=0, Total=8010 [2021-05-06 05:54:48,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-05-06 05:54:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 215. [2021-05-06 05:54:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.1952380952380952) internal successors, (251), 210 states have internal predecessors, (251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 255 transitions. [2021-05-06 05:54:48,771 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 255 transitions. Word has length 95 [2021-05-06 05:54:48,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:48,771 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 255 transitions. [2021-05-06 05:54:48,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.0833333333333335) internal successors, (100), 45 states have internal predecessors, (100), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 255 transitions. [2021-05-06 05:54:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-05-06 05:54:48,771 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:48,772 INFO L523 BasicCegarLoop]: trace histogram [41, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:48,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:48,989 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1852927836, now seen corresponding path program 40 times [2021-05-06 05:54:48,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:48,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060551535] [2021-05-06 05:54:48,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:49,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:49,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:49,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060551535] [2021-05-06 05:54:49,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060551535] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:49,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364922282] [2021-05-06 05:54:49,823 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:49,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:54:49,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:49,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 44 conjunts are in the unsatisfiable core [2021-05-06 05:54:49,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:49,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:49,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:50,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364922282] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:50,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:50,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 45] total 49 [2021-05-06 05:54:50,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777734110] [2021-05-06 05:54:50,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-06 05:54:50,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:50,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-06 05:54:50,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=1394, Unknown=0, NotChecked=0, Total=2352 [2021-05-06 05:54:50,077 INFO L87 Difference]: Start difference. First operand 215 states and 255 transitions. Second operand has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 46 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:51,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:51,815 INFO L93 Difference]: Finished difference Result 231 states and 273 transitions. [2021-05-06 05:54:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-06 05:54:51,816 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 46 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2021-05-06 05:54:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:51,817 INFO L225 Difference]: With dead ends: 231 [2021-05-06 05:54:51,817 INFO L226 Difference]: Without dead ends: 227 [2021-05-06 05:54:51,817 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1309 ImplicationChecksByTransitivity, 2092.2ms TimeCoverageRelationStatistics Valid=2776, Invalid=5596, Unknown=0, NotChecked=0, Total=8372 [2021-05-06 05:54:51,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-05-06 05:54:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 220. [2021-05-06 05:54:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.1953488372093024) internal successors, (257), 215 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 261 transitions. [2021-05-06 05:54:51,820 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 261 transitions. Word has length 97 [2021-05-06 05:54:51,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:51,820 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 261 transitions. [2021-05-06 05:54:51,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.0816326530612246) internal successors, (102), 46 states have internal predecessors, (102), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 261 transitions. [2021-05-06 05:54:51,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-05-06 05:54:51,821 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:51,821 INFO L523 BasicCegarLoop]: trace histogram [42, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:52,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:52,037 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:52,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1653584864, now seen corresponding path program 41 times [2021-05-06 05:54:52,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:52,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853140082] [2021-05-06 05:54:52,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:52,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:52,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:52,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853140082] [2021-05-06 05:54:52,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853140082] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:52,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093424531] [2021-05-06 05:54:52,805 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:52,897 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-05-06 05:54:52,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:52,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-06 05:54:52,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:52,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:52,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:53,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093424531] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:53,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:53,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 46] total 50 [2021-05-06 05:54:53,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718000040] [2021-05-06 05:54:53,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-06 05:54:53,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:53,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-06 05:54:53,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1002, Invalid=1448, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 05:54:53,070 INFO L87 Difference]: Start difference. First operand 220 states and 261 transitions. Second operand has 50 states, 50 states have (on average 2.08) internal successors, (104), 47 states have internal predecessors, (104), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:54,781 INFO L93 Difference]: Finished difference Result 236 states and 279 transitions. [2021-05-06 05:54:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 05:54:54,782 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.08) internal successors, (104), 47 states have internal predecessors, (104), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2021-05-06 05:54:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:54,782 INFO L225 Difference]: With dead ends: 236 [2021-05-06 05:54:54,782 INFO L226 Difference]: Without dead ends: 232 [2021-05-06 05:54:54,783 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 2028.7ms TimeCoverageRelationStatistics Valid=2906, Invalid=5836, Unknown=0, NotChecked=0, Total=8742 [2021-05-06 05:54:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-05-06 05:54:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 225. [2021-05-06 05:54:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.1954545454545455) internal successors, (263), 220 states have internal predecessors, (263), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 267 transitions. [2021-05-06 05:54:54,787 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 267 transitions. Word has length 99 [2021-05-06 05:54:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:54,787 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 267 transitions. [2021-05-06 05:54:54,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 2.08) internal successors, (104), 47 states have internal predecessors, (104), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 267 transitions. [2021-05-06 05:54:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-05-06 05:54:54,789 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:54,789 INFO L523 BasicCegarLoop]: trace histogram [43, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:55,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-05-06 05:54:55,006 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:55,007 INFO L82 PathProgramCache]: Analyzing trace with hash -137037796, now seen corresponding path program 42 times [2021-05-06 05:54:55,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:55,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757755207] [2021-05-06 05:54:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:55,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:55,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757755207] [2021-05-06 05:54:55,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757755207] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:55,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136629177] [2021-05-06 05:54:55,688 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:55,808 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-05-06 05:54:55,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:54:55,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 46 conjunts are in the unsatisfiable core [2021-05-06 05:54:55,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:55,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:55,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:56,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136629177] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:56,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:56,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47] total 51 [2021-05-06 05:54:56,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250774757] [2021-05-06 05:54:56,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-06 05:54:56,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:56,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-06 05:54:56,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1047, Invalid=1503, Unknown=0, NotChecked=0, Total=2550 [2021-05-06 05:54:56,004 INFO L87 Difference]: Start difference. First operand 225 states and 267 transitions. Second operand has 51 states, 51 states have (on average 2.0784313725490198) internal successors, (106), 48 states have internal predecessors, (106), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:54:57,888 INFO L93 Difference]: Finished difference Result 241 states and 285 transitions. [2021-05-06 05:54:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-06 05:54:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.0784313725490198) internal successors, (106), 48 states have internal predecessors, (106), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2021-05-06 05:54:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:54:57,889 INFO L225 Difference]: With dead ends: 241 [2021-05-06 05:54:57,889 INFO L226 Difference]: Without dead ends: 237 [2021-05-06 05:54:57,890 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 2095.5ms TimeCoverageRelationStatistics Valid=3039, Invalid=6081, Unknown=0, NotChecked=0, Total=9120 [2021-05-06 05:54:57,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-05-06 05:54:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 230. [2021-05-06 05:54:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.1955555555555555) internal successors, (269), 225 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:57,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 273 transitions. [2021-05-06 05:54:57,892 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 273 transitions. Word has length 101 [2021-05-06 05:54:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:54:57,892 INFO L480 AbstractCegarLoop]: Abstraction has 230 states and 273 transitions. [2021-05-06 05:54:57,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 2.0784313725490198) internal successors, (106), 48 states have internal predecessors, (106), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:54:57,892 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 273 transitions. [2021-05-06 05:54:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-05-06 05:54:57,893 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:54:57,893 INFO L523 BasicCegarLoop]: trace histogram [44, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:54:58,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:58,110 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:54:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:54:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1356471640, now seen corresponding path program 43 times [2021-05-06 05:54:58,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:54:58,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523278544] [2021-05-06 05:54:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:54:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:54:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:58,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:54:58,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523278544] [2021-05-06 05:54:58,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523278544] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:58,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568281983] [2021-05-06 05:54:58,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:54:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:54:58,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 47 conjunts are in the unsatisfiable core [2021-05-06 05:54:58,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:54:58,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:58,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:54:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:54:59,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568281983] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:54:59,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:54:59,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 52 [2021-05-06 05:54:59,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463804007] [2021-05-06 05:54:59,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-06 05:54:59,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:54:59,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-06 05:54:59,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1093, Invalid=1559, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:54:59,151 INFO L87 Difference]: Start difference. First operand 230 states and 273 transitions. Second operand has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 49 states have internal predecessors, (108), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:01,139 INFO L93 Difference]: Finished difference Result 246 states and 291 transitions. [2021-05-06 05:55:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-06 05:55:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 49 states have internal predecessors, (108), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2021-05-06 05:55:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:01,140 INFO L225 Difference]: With dead ends: 246 [2021-05-06 05:55:01,140 INFO L226 Difference]: Without dead ends: 242 [2021-05-06 05:55:01,141 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1471 ImplicationChecksByTransitivity, 2280.3ms TimeCoverageRelationStatistics Valid=3175, Invalid=6331, Unknown=0, NotChecked=0, Total=9506 [2021-05-06 05:55:01,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-05-06 05:55:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 235. [2021-05-06 05:55:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.1956521739130435) internal successors, (275), 230 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 279 transitions. [2021-05-06 05:55:01,144 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 279 transitions. Word has length 103 [2021-05-06 05:55:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:01,144 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 279 transitions. [2021-05-06 05:55:01,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.076923076923077) internal successors, (108), 49 states have internal predecessors, (108), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 279 transitions. [2021-05-06 05:55:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-05-06 05:55:01,145 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:01,145 INFO L523 BasicCegarLoop]: trace histogram [45, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:01,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:01,349 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:01,349 INFO L82 PathProgramCache]: Analyzing trace with hash 2099962772, now seen corresponding path program 44 times [2021-05-06 05:55:01,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:01,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48136078] [2021-05-06 05:55:01,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:02,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:02,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:02,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48136078] [2021-05-06 05:55:02,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48136078] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:02,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397416368] [2021-05-06 05:55:02,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:02,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:55:02,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:02,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-06 05:55:02,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:02,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:02,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397416368] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:02,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:02,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49] total 53 [2021-05-06 05:55:02,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139797249] [2021-05-06 05:55:02,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-06 05:55:02,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:02,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-06 05:55:02,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1140, Invalid=1616, Unknown=0, NotChecked=0, Total=2756 [2021-05-06 05:55:02,563 INFO L87 Difference]: Start difference. First operand 235 states and 279 transitions. Second operand has 53 states, 53 states have (on average 2.0754716981132075) internal successors, (110), 50 states have internal predecessors, (110), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:04,709 INFO L93 Difference]: Finished difference Result 251 states and 297 transitions. [2021-05-06 05:55:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-06 05:55:04,710 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.0754716981132075) internal successors, (110), 50 states have internal predecessors, (110), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2021-05-06 05:55:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:04,710 INFO L225 Difference]: With dead ends: 251 [2021-05-06 05:55:04,710 INFO L226 Difference]: Without dead ends: 247 [2021-05-06 05:55:04,711 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1527 ImplicationChecksByTransitivity, 2508.3ms TimeCoverageRelationStatistics Valid=3314, Invalid=6586, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:55:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-05-06 05:55:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 240. [2021-05-06 05:55:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.195744680851064) internal successors, (281), 235 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 285 transitions. [2021-05-06 05:55:04,713 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 285 transitions. Word has length 105 [2021-05-06 05:55:04,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:04,713 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 285 transitions. [2021-05-06 05:55:04,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.0754716981132075) internal successors, (110), 50 states have internal predecessors, (110), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:04,713 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 285 transitions. [2021-05-06 05:55:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-06 05:55:04,714 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:04,714 INFO L523 BasicCegarLoop]: trace histogram [46, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:04,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-05-06 05:55:04,929 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:04,929 INFO L82 PathProgramCache]: Analyzing trace with hash -664597808, now seen corresponding path program 45 times [2021-05-06 05:55:04,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:04,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141168412] [2021-05-06 05:55:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:05,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:05,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141168412] [2021-05-06 05:55:05,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141168412] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:05,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855471772] [2021-05-06 05:55:05,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:05,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-05-06 05:55:05,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:05,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 49 conjunts are in the unsatisfiable core [2021-05-06 05:55:05,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:05,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:05,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:06,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855471772] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:06,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:06,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50] total 54 [2021-05-06 05:55:06,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102423296] [2021-05-06 05:55:06,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-06 05:55:06,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:06,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-06 05:55:06,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1188, Invalid=1674, Unknown=0, NotChecked=0, Total=2862 [2021-05-06 05:55:06,188 INFO L87 Difference]: Start difference. First operand 240 states and 285 transitions. Second operand has 54 states, 54 states have (on average 2.074074074074074) internal successors, (112), 51 states have internal predecessors, (112), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:08,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:08,496 INFO L93 Difference]: Finished difference Result 256 states and 303 transitions. [2021-05-06 05:55:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-06 05:55:08,497 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.074074074074074) internal successors, (112), 51 states have internal predecessors, (112), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2021-05-06 05:55:08,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:08,498 INFO L225 Difference]: With dead ends: 256 [2021-05-06 05:55:08,498 INFO L226 Difference]: Without dead ends: 252 [2021-05-06 05:55:08,498 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 2619.1ms TimeCoverageRelationStatistics Valid=3456, Invalid=6846, Unknown=0, NotChecked=0, Total=10302 [2021-05-06 05:55:08,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-05-06 05:55:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 245. [2021-05-06 05:55:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.1958333333333333) internal successors, (287), 240 states have internal predecessors, (287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 291 transitions. [2021-05-06 05:55:08,501 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 291 transitions. Word has length 107 [2021-05-06 05:55:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:08,501 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 291 transitions. [2021-05-06 05:55:08,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 2.074074074074074) internal successors, (112), 51 states have internal predecessors, (112), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 291 transitions. [2021-05-06 05:55:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-05-06 05:55:08,502 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:08,502 INFO L523 BasicCegarLoop]: trace histogram [47, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:08,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-05-06 05:55:08,717 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:08,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:08,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1177441036, now seen corresponding path program 46 times [2021-05-06 05:55:08,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:08,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275150981] [2021-05-06 05:55:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:09,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:09,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:09,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275150981] [2021-05-06 05:55:09,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275150981] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:09,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463488982] [2021-05-06 05:55:09,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:09,767 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:55:09,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:09,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 50 conjunts are in the unsatisfiable core [2021-05-06 05:55:09,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:09,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:09,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463488982] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:09,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:09,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 51] total 55 [2021-05-06 05:55:09,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703512309] [2021-05-06 05:55:09,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-05-06 05:55:09,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:09,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-05-06 05:55:09,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1237, Invalid=1733, Unknown=0, NotChecked=0, Total=2970 [2021-05-06 05:55:09,984 INFO L87 Difference]: Start difference. First operand 245 states and 291 transitions. Second operand has 55 states, 55 states have (on average 2.0727272727272728) internal successors, (114), 52 states have internal predecessors, (114), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:12,158 INFO L93 Difference]: Finished difference Result 261 states and 309 transitions. [2021-05-06 05:55:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-06 05:55:12,159 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.0727272727272728) internal successors, (114), 52 states have internal predecessors, (114), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2021-05-06 05:55:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:12,160 INFO L225 Difference]: With dead ends: 261 [2021-05-06 05:55:12,160 INFO L226 Difference]: Without dead ends: 257 [2021-05-06 05:55:12,160 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 2601.6ms TimeCoverageRelationStatistics Valid=3601, Invalid=7111, Unknown=0, NotChecked=0, Total=10712 [2021-05-06 05:55:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-05-06 05:55:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2021-05-06 05:55:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.1959183673469387) internal successors, (293), 245 states have internal predecessors, (293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 297 transitions. [2021-05-06 05:55:12,163 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 297 transitions. Word has length 109 [2021-05-06 05:55:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:12,163 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 297 transitions. [2021-05-06 05:55:12,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.0727272727272728) internal successors, (114), 52 states have internal predecessors, (114), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 297 transitions. [2021-05-06 05:55:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-05-06 05:55:12,164 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:12,164 INFO L523 BasicCegarLoop]: trace histogram [48, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:12,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-05-06 05:55:12,381 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1850244168, now seen corresponding path program 47 times [2021-05-06 05:55:12,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:12,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838155801] [2021-05-06 05:55:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:13,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:13,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:13,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838155801] [2021-05-06 05:55:13,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838155801] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:13,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589479474] [2021-05-06 05:55:13,356 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:13,468 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-05-06 05:55:13,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:13,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 51 conjunts are in the unsatisfiable core [2021-05-06 05:55:13,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:13,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:13,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589479474] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:13,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:13,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 52] total 56 [2021-05-06 05:55:13,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749815860] [2021-05-06 05:55:13,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-06 05:55:13,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-06 05:55:13,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1287, Invalid=1793, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:55:13,711 INFO L87 Difference]: Start difference. First operand 250 states and 297 transitions. Second operand has 56 states, 56 states have (on average 2.0714285714285716) internal successors, (116), 53 states have internal predecessors, (116), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:15,989 INFO L93 Difference]: Finished difference Result 266 states and 315 transitions. [2021-05-06 05:55:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-06 05:55:15,990 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.0714285714285716) internal successors, (116), 53 states have internal predecessors, (116), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2021-05-06 05:55:15,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:15,990 INFO L225 Difference]: With dead ends: 266 [2021-05-06 05:55:15,991 INFO L226 Difference]: Without dead ends: 262 [2021-05-06 05:55:15,991 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 2762.2ms TimeCoverageRelationStatistics Valid=3749, Invalid=7381, Unknown=0, NotChecked=0, Total=11130 [2021-05-06 05:55:15,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-05-06 05:55:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 255. [2021-05-06 05:55:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.196) internal successors, (299), 250 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2021-05-06 05:55:15,994 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 111 [2021-05-06 05:55:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:15,994 INFO L480 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2021-05-06 05:55:15,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 2.0714285714285716) internal successors, (116), 53 states have internal predecessors, (116), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2021-05-06 05:55:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-06 05:55:15,994 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:15,994 INFO L523 BasicCegarLoop]: trace histogram [49, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:16,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:16,209 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:16,209 INFO L82 PathProgramCache]: Analyzing trace with hash -126007676, now seen corresponding path program 48 times [2021-05-06 05:55:16,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:16,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48965969] [2021-05-06 05:55:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:17,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:17,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48965969] [2021-05-06 05:55:17,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48965969] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:17,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309962083] [2021-05-06 05:55:17,172 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:17,297 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-05-06 05:55:17,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:17,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 52 conjunts are in the unsatisfiable core [2021-05-06 05:55:17,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:17,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:17,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309962083] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:17,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:17,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 53] total 57 [2021-05-06 05:55:17,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913560444] [2021-05-06 05:55:17,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-06 05:55:17,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:17,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-06 05:55:17,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1338, Invalid=1854, Unknown=0, NotChecked=0, Total=3192 [2021-05-06 05:55:17,539 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 54 states have internal predecessors, (118), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:19,881 INFO L93 Difference]: Finished difference Result 271 states and 321 transitions. [2021-05-06 05:55:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-06 05:55:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 54 states have internal predecessors, (118), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2021-05-06 05:55:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:19,882 INFO L225 Difference]: With dead ends: 271 [2021-05-06 05:55:19,882 INFO L226 Difference]: Without dead ends: 267 [2021-05-06 05:55:19,882 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 2726.1ms TimeCoverageRelationStatistics Valid=3900, Invalid=7656, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 05:55:19,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-05-06 05:55:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 260. [2021-05-06 05:55:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.196078431372549) internal successors, (305), 255 states have internal predecessors, (305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 309 transitions. [2021-05-06 05:55:19,885 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 309 transitions. Word has length 113 [2021-05-06 05:55:19,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:19,885 INFO L480 AbstractCegarLoop]: Abstraction has 260 states and 309 transitions. [2021-05-06 05:55:19,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 2.0701754385964914) internal successors, (118), 54 states have internal predecessors, (118), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 309 transitions. [2021-05-06 05:55:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-05-06 05:55:19,886 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:19,886 INFO L523 BasicCegarLoop]: trace histogram [50, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:20,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-05-06 05:55:20,104 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:20,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:20,105 INFO L82 PathProgramCache]: Analyzing trace with hash -928484928, now seen corresponding path program 49 times [2021-05-06 05:55:20,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:20,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38225726] [2021-05-06 05:55:20,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:21,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:21,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:21,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38225726] [2021-05-06 05:55:21,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38225726] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:21,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253637956] [2021-05-06 05:55:21,216 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:21,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-06 05:55:21,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:21,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:21,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:21,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253637956] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:21,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:21,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54] total 58 [2021-05-06 05:55:21,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111523324] [2021-05-06 05:55:21,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-06 05:55:21,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:21,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-06 05:55:21,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1390, Invalid=1916, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 05:55:21,531 INFO L87 Difference]: Start difference. First operand 260 states and 309 transitions. Second operand has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 55 states have internal predecessors, (120), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:23,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:23,925 INFO L93 Difference]: Finished difference Result 276 states and 327 transitions. [2021-05-06 05:55:23,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-06 05:55:23,926 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 55 states have internal predecessors, (120), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2021-05-06 05:55:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:23,941 INFO L225 Difference]: With dead ends: 276 [2021-05-06 05:55:23,941 INFO L226 Difference]: Without dead ends: 272 [2021-05-06 05:55:23,942 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1822 ImplicationChecksByTransitivity, 2915.0ms TimeCoverageRelationStatistics Valid=4054, Invalid=7936, Unknown=0, NotChecked=0, Total=11990 [2021-05-06 05:55:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-05-06 05:55:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2021-05-06 05:55:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 260 states have (on average 1.1961538461538461) internal successors, (311), 260 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 315 transitions. [2021-05-06 05:55:23,958 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 315 transitions. Word has length 115 [2021-05-06 05:55:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:23,958 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 315 transitions. [2021-05-06 05:55:23,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 55 states have internal predecessors, (120), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 315 transitions. [2021-05-06 05:55:23,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-05-06 05:55:23,959 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:23,959 INFO L523 BasicCegarLoop]: trace histogram [51, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:24,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:24,160 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:24,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:24,160 INFO L82 PathProgramCache]: Analyzing trace with hash 984989180, now seen corresponding path program 50 times [2021-05-06 05:55:24,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:24,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678331074] [2021-05-06 05:55:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:25,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:25,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678331074] [2021-05-06 05:55:25,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678331074] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:25,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818486072] [2021-05-06 05:55:25,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:25,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:55:25,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:25,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 54 conjunts are in the unsatisfiable core [2021-05-06 05:55:25,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:25,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:25,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818486072] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:25,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:25,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 55] total 59 [2021-05-06 05:55:25,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198210564] [2021-05-06 05:55:25,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-05-06 05:55:25,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:25,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-05-06 05:55:25,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1443, Invalid=1979, Unknown=0, NotChecked=0, Total=3422 [2021-05-06 05:55:25,479 INFO L87 Difference]: Start difference. First operand 265 states and 315 transitions. Second operand has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:27,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:27,952 INFO L93 Difference]: Finished difference Result 281 states and 333 transitions. [2021-05-06 05:55:27,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-05-06 05:55:27,952 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2021-05-06 05:55:27,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:27,953 INFO L225 Difference]: With dead ends: 281 [2021-05-06 05:55:27,953 INFO L226 Difference]: Without dead ends: 277 [2021-05-06 05:55:27,954 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 2930.0ms TimeCoverageRelationStatistics Valid=4211, Invalid=8221, Unknown=0, NotChecked=0, Total=12432 [2021-05-06 05:55:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-05-06 05:55:27,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 270. [2021-05-06 05:55:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.1962264150943396) internal successors, (317), 265 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2021-05-06 05:55:27,958 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 117 [2021-05-06 05:55:27,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:27,958 INFO L480 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2021-05-06 05:55:27,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:27,958 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2021-05-06 05:55:27,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-06 05:55:27,959 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:27,959 INFO L523 BasicCegarLoop]: trace histogram [52, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:28,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:28,183 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:28,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1587604280, now seen corresponding path program 51 times [2021-05-06 05:55:28,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:28,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122202893] [2021-05-06 05:55:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:29,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:29,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122202893] [2021-05-06 05:55:29,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122202893] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:29,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813928338] [2021-05-06 05:55:29,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:29,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-05-06 05:55:29,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:29,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 55 conjunts are in the unsatisfiable core [2021-05-06 05:55:29,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:29,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:29,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813928338] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:29,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:29,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56] total 60 [2021-05-06 05:55:29,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591537062] [2021-05-06 05:55:29,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-06 05:55:29,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:29,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-06 05:55:29,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2043, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 05:55:29,653 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 60 states, 60 states have (on average 2.066666666666667) internal successors, (124), 57 states have internal predecessors, (124), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:32,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:32,225 INFO L93 Difference]: Finished difference Result 286 states and 339 transitions. [2021-05-06 05:55:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-06 05:55:32,225 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 2.066666666666667) internal successors, (124), 57 states have internal predecessors, (124), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2021-05-06 05:55:32,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:32,226 INFO L225 Difference]: With dead ends: 286 [2021-05-06 05:55:32,226 INFO L226 Difference]: Without dead ends: 282 [2021-05-06 05:55:32,226 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 3059.8ms TimeCoverageRelationStatistics Valid=4371, Invalid=8511, Unknown=0, NotChecked=0, Total=12882 [2021-05-06 05:55:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-05-06 05:55:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 275. [2021-05-06 05:55:32,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 270 states have (on average 1.1962962962962962) internal successors, (323), 270 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 327 transitions. [2021-05-06 05:55:32,229 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 327 transitions. Word has length 119 [2021-05-06 05:55:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:32,229 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 327 transitions. [2021-05-06 05:55:32,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.066666666666667) internal successors, (124), 57 states have internal predecessors, (124), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 327 transitions. [2021-05-06 05:55:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-05-06 05:55:32,230 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:32,230 INFO L523 BasicCegarLoop]: trace histogram [53, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:32,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-05-06 05:55:32,450 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:32,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:32,451 INFO L82 PathProgramCache]: Analyzing trace with hash 880130420, now seen corresponding path program 52 times [2021-05-06 05:55:32,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:32,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821019594] [2021-05-06 05:55:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:33,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:33,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821019594] [2021-05-06 05:55:33,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821019594] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:33,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700722522] [2021-05-06 05:55:33,644 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:33,726 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:55:33,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:33,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 56 conjunts are in the unsatisfiable core [2021-05-06 05:55:33,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:33,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:33,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700722522] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:33,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:33,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 57] total 61 [2021-05-06 05:55:33,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156432246] [2021-05-06 05:55:33,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-05-06 05:55:33,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:33,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-05-06 05:55:33,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1552, Invalid=2108, Unknown=0, NotChecked=0, Total=3660 [2021-05-06 05:55:33,944 INFO L87 Difference]: Start difference. First operand 275 states and 327 transitions. Second operand has 61 states, 61 states have (on average 2.0655737704918034) internal successors, (126), 58 states have internal predecessors, (126), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:36,648 INFO L93 Difference]: Finished difference Result 291 states and 345 transitions. [2021-05-06 05:55:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-06 05:55:36,649 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.0655737704918034) internal successors, (126), 58 states have internal predecessors, (126), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2021-05-06 05:55:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:36,650 INFO L225 Difference]: With dead ends: 291 [2021-05-06 05:55:36,650 INFO L226 Difference]: Without dead ends: 287 [2021-05-06 05:55:36,651 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 3342.2ms TimeCoverageRelationStatistics Valid=4534, Invalid=8806, Unknown=0, NotChecked=0, Total=13340 [2021-05-06 05:55:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-05-06 05:55:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 280. [2021-05-06 05:55:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.1963636363636363) internal successors, (329), 275 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 333 transitions. [2021-05-06 05:55:36,654 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 333 transitions. Word has length 121 [2021-05-06 05:55:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:36,654 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 333 transitions. [2021-05-06 05:55:36,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 61 states, 61 states have (on average 2.0655737704918034) internal successors, (126), 58 states have internal predecessors, (126), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 333 transitions. [2021-05-06 05:55:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-05-06 05:55:36,673 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:36,673 INFO L523 BasicCegarLoop]: trace histogram [54, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:36,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:36,874 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:36,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:36,874 INFO L82 PathProgramCache]: Analyzing trace with hash -397416272, now seen corresponding path program 53 times [2021-05-06 05:55:36,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:36,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621740432] [2021-05-06 05:55:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:38,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:38,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:38,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621740432] [2021-05-06 05:55:38,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621740432] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:38,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512075751] [2021-05-06 05:55:38,136 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:38,277 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-05-06 05:55:38,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:38,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 57 conjunts are in the unsatisfiable core [2021-05-06 05:55:38,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:38,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:38,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512075751] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:38,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:38,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 58] total 62 [2021-05-06 05:55:38,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888022207] [2021-05-06 05:55:38,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-06 05:55:38,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:38,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-06 05:55:38,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1608, Invalid=2174, Unknown=0, NotChecked=0, Total=3782 [2021-05-06 05:55:38,584 INFO L87 Difference]: Start difference. First operand 280 states and 333 transitions. Second operand has 62 states, 62 states have (on average 2.064516129032258) internal successors, (128), 59 states have internal predecessors, (128), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:41,357 INFO L93 Difference]: Finished difference Result 296 states and 351 transitions. [2021-05-06 05:55:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-06 05:55:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.064516129032258) internal successors, (128), 59 states have internal predecessors, (128), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2021-05-06 05:55:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:41,359 INFO L225 Difference]: With dead ends: 296 [2021-05-06 05:55:41,359 INFO L226 Difference]: Without dead ends: 292 [2021-05-06 05:55:41,359 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2076 ImplicationChecksByTransitivity, 3360.9ms TimeCoverageRelationStatistics Valid=4700, Invalid=9106, Unknown=0, NotChecked=0, Total=13806 [2021-05-06 05:55:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-05-06 05:55:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 285. [2021-05-06 05:55:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.1964285714285714) internal successors, (335), 280 states have internal predecessors, (335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 339 transitions. [2021-05-06 05:55:41,362 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 339 transitions. Word has length 123 [2021-05-06 05:55:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:41,362 INFO L480 AbstractCegarLoop]: Abstraction has 285 states and 339 transitions. [2021-05-06 05:55:41,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 2.064516129032258) internal successors, (128), 59 states have internal predecessors, (128), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 339 transitions. [2021-05-06 05:55:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-05-06 05:55:41,363 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:41,363 INFO L523 BasicCegarLoop]: trace histogram [55, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:41,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-05-06 05:55:41,580 INFO L428 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:41,581 INFO L82 PathProgramCache]: Analyzing trace with hash 240859372, now seen corresponding path program 54 times [2021-05-06 05:55:41,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:41,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578168804] [2021-05-06 05:55:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:42,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:42,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578168804] [2021-05-06 05:55:42,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578168804] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:42,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190926654] [2021-05-06 05:55:42,930 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:43,056 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-05-06 05:55:43,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:43,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 58 conjunts are in the unsatisfiable core [2021-05-06 05:55:43,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:43,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:43,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190926654] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:43,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:43,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 59] total 63 [2021-05-06 05:55:43,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714378149] [2021-05-06 05:55:43,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-06 05:55:43,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:43,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-06 05:55:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1665, Invalid=2241, Unknown=0, NotChecked=0, Total=3906 [2021-05-06 05:55:43,287 INFO L87 Difference]: Start difference. First operand 285 states and 339 transitions. Second operand has 63 states, 63 states have (on average 2.0634920634920637) internal successors, (130), 60 states have internal predecessors, (130), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:46,184 INFO L93 Difference]: Finished difference Result 301 states and 357 transitions. [2021-05-06 05:55:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-06 05:55:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.0634920634920637) internal successors, (130), 60 states have internal predecessors, (130), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2021-05-06 05:55:46,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:46,185 INFO L225 Difference]: With dead ends: 301 [2021-05-06 05:55:46,185 INFO L226 Difference]: Without dead ends: 297 [2021-05-06 05:55:46,186 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2142 ImplicationChecksByTransitivity, 3556.4ms TimeCoverageRelationStatistics Valid=4869, Invalid=9411, Unknown=0, NotChecked=0, Total=14280 [2021-05-06 05:55:46,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-05-06 05:55:46,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 290. [2021-05-06 05:55:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.1964912280701754) internal successors, (341), 285 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 345 transitions. [2021-05-06 05:55:46,202 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 345 transitions. Word has length 125 [2021-05-06 05:55:46,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:46,202 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 345 transitions. [2021-05-06 05:55:46,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 2.0634920634920637) internal successors, (130), 60 states have internal predecessors, (130), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 345 transitions. [2021-05-06 05:55:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-05-06 05:55:46,206 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:46,206 INFO L523 BasicCegarLoop]: trace histogram [56, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:46,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-05-06 05:55:46,421 INFO L428 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:46,421 INFO L82 PathProgramCache]: Analyzing trace with hash -556570072, now seen corresponding path program 55 times [2021-05-06 05:55:46,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:46,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003857914] [2021-05-06 05:55:46,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:47,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:47,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:47,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003857914] [2021-05-06 05:55:47,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003857914] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:47,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803234825] [2021-05-06 05:55:47,663 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:47,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 59 conjunts are in the unsatisfiable core [2021-05-06 05:55:47,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:47,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:47,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:48,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:48,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803234825] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:48,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:48,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 60] total 64 [2021-05-06 05:55:48,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886772574] [2021-05-06 05:55:48,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-06 05:55:48,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:48,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-06 05:55:48,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1723, Invalid=2309, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:55:48,009 INFO L87 Difference]: Start difference. First operand 290 states and 345 transitions. Second operand has 64 states, 64 states have (on average 2.0625) internal successors, (132), 61 states have internal predecessors, (132), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:50,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:50,945 INFO L93 Difference]: Finished difference Result 306 states and 363 transitions. [2021-05-06 05:55:50,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-06 05:55:50,945 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.0625) internal successors, (132), 61 states have internal predecessors, (132), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2021-05-06 05:55:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:50,946 INFO L225 Difference]: With dead ends: 306 [2021-05-06 05:55:50,946 INFO L226 Difference]: Without dead ends: 302 [2021-05-06 05:55:50,947 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 3518.1ms TimeCoverageRelationStatistics Valid=5041, Invalid=9721, Unknown=0, NotChecked=0, Total=14762 [2021-05-06 05:55:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-05-06 05:55:50,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 295. [2021-05-06 05:55:50,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.196551724137931) internal successors, (347), 290 states have internal predecessors, (347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 351 transitions. [2021-05-06 05:55:50,949 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 351 transitions. Word has length 127 [2021-05-06 05:55:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:50,950 INFO L480 AbstractCegarLoop]: Abstraction has 295 states and 351 transitions. [2021-05-06 05:55:50,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.0625) internal successors, (132), 61 states have internal predecessors, (132), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 351 transitions. [2021-05-06 05:55:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-05-06 05:55:50,950 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:50,950 INFO L523 BasicCegarLoop]: trace histogram [57, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:51,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:51,168 INFO L428 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:51,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1912880228, now seen corresponding path program 56 times [2021-05-06 05:55:51,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:51,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499759403] [2021-05-06 05:55:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:52,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:52,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499759403] [2021-05-06 05:55:52,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499759403] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:52,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555659604] [2021-05-06 05:55:52,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:52,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:55:52,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:52,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 60 conjunts are in the unsatisfiable core [2021-05-06 05:55:52,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:52,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:52,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:52,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555659604] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:52,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:52,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 61] total 65 [2021-05-06 05:55:52,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092216485] [2021-05-06 05:55:52,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-05-06 05:55:52,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:52,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-05-06 05:55:52,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1782, Invalid=2378, Unknown=0, NotChecked=0, Total=4160 [2021-05-06 05:55:52,753 INFO L87 Difference]: Start difference. First operand 295 states and 351 transitions. Second operand has 65 states, 65 states have (on average 2.0615384615384613) internal successors, (134), 62 states have internal predecessors, (134), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:55:55,610 INFO L93 Difference]: Finished difference Result 311 states and 369 transitions. [2021-05-06 05:55:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-05-06 05:55:55,610 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.0615384615384613) internal successors, (134), 62 states have internal predecessors, (134), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2021-05-06 05:55:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:55:55,611 INFO L225 Difference]: With dead ends: 311 [2021-05-06 05:55:55,611 INFO L226 Difference]: Without dead ends: 307 [2021-05-06 05:55:55,612 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2277 ImplicationChecksByTransitivity, 3459.3ms TimeCoverageRelationStatistics Valid=5216, Invalid=10036, Unknown=0, NotChecked=0, Total=15252 [2021-05-06 05:55:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-05-06 05:55:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 300. [2021-05-06 05:55:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.1966101694915254) internal successors, (353), 295 states have internal predecessors, (353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions. [2021-05-06 05:55:55,614 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 129 [2021-05-06 05:55:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:55:55,614 INFO L480 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions. [2021-05-06 05:55:55,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.0615384615384613) internal successors, (134), 62 states have internal predecessors, (134), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:55:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions. [2021-05-06 05:55:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-06 05:55:55,615 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:55:55,615 INFO L523 BasicCegarLoop]: trace histogram [58, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:55:55,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-05-06 05:55:55,832 INFO L428 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:55:55,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:55:55,833 INFO L82 PathProgramCache]: Analyzing trace with hash -62296160, now seen corresponding path program 57 times [2021-05-06 05:55:55,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:55:55,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536310269] [2021-05-06 05:55:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:55:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:57,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:55:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:55:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:57,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:55:57,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536310269] [2021-05-06 05:55:57,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536310269] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:57,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351614745] [2021-05-06 05:55:57,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:55:57,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-05-06 05:55:57,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:55:57,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 61 conjunts are in the unsatisfiable core [2021-05-06 05:55:57,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:55:57,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:55:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:55:57,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351614745] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:55:57,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:55:57,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 62] total 66 [2021-05-06 05:55:57,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116538960] [2021-05-06 05:55:57,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-06 05:55:57,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:55:57,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-06 05:55:57,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1842, Invalid=2448, Unknown=0, NotChecked=0, Total=4290 [2021-05-06 05:55:57,565 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 66 states, 66 states have (on average 2.0606060606060606) internal successors, (136), 63 states have internal predecessors, (136), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:00,498 INFO L93 Difference]: Finished difference Result 316 states and 375 transitions. [2021-05-06 05:56:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-06 05:56:00,498 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0606060606060606) internal successors, (136), 63 states have internal predecessors, (136), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2021-05-06 05:56:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:00,499 INFO L225 Difference]: With dead ends: 316 [2021-05-06 05:56:00,499 INFO L226 Difference]: Without dead ends: 312 [2021-05-06 05:56:00,500 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2346 ImplicationChecksByTransitivity, 3600.3ms TimeCoverageRelationStatistics Valid=5394, Invalid=10356, Unknown=0, NotChecked=0, Total=15750 [2021-05-06 05:56:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-05-06 05:56:00,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 305. [2021-05-06 05:56:00,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 300 states have (on average 1.1966666666666668) internal successors, (359), 300 states have internal predecessors, (359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 363 transitions. [2021-05-06 05:56:00,503 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 363 transitions. Word has length 131 [2021-05-06 05:56:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:00,503 INFO L480 AbstractCegarLoop]: Abstraction has 305 states and 363 transitions. [2021-05-06 05:56:00,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 2.0606060606060606) internal successors, (136), 63 states have internal predecessors, (136), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:00,503 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 363 transitions. [2021-05-06 05:56:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-05-06 05:56:00,504 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:00,504 INFO L523 BasicCegarLoop]: trace histogram [59, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:00,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:00,722 INFO L428 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:00,723 INFO L82 PathProgramCache]: Analyzing trace with hash 168739804, now seen corresponding path program 58 times [2021-05-06 05:56:00,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:00,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625428103] [2021-05-06 05:56:00,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3422 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:02,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:02,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625428103] [2021-05-06 05:56:02,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625428103] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:02,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113618743] [2021-05-06 05:56:02,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:02,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:56:02,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:02,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 62 conjunts are in the unsatisfiable core [2021-05-06 05:56:02,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:02,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3422 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:02,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113618743] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:02,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:02,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63] total 67 [2021-05-06 05:56:02,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832680336] [2021-05-06 05:56:02,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-05-06 05:56:02,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:02,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-05-06 05:56:02,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1903, Invalid=2519, Unknown=0, NotChecked=0, Total=4422 [2021-05-06 05:56:02,561 INFO L87 Difference]: Start difference. First operand 305 states and 363 transitions. Second operand has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 64 states have internal predecessors, (138), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:05,640 INFO L93 Difference]: Finished difference Result 321 states and 381 transitions. [2021-05-06 05:56:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-06 05:56:05,640 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 64 states have internal predecessors, (138), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2021-05-06 05:56:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:05,641 INFO L225 Difference]: With dead ends: 321 [2021-05-06 05:56:05,641 INFO L226 Difference]: Without dead ends: 317 [2021-05-06 05:56:05,642 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 3935.8ms TimeCoverageRelationStatistics Valid=5575, Invalid=10681, Unknown=0, NotChecked=0, Total=16256 [2021-05-06 05:56:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-05-06 05:56:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 310. [2021-05-06 05:56:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.1967213114754098) internal successors, (365), 305 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 369 transitions. [2021-05-06 05:56:05,644 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 369 transitions. Word has length 133 [2021-05-06 05:56:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:05,645 INFO L480 AbstractCegarLoop]: Abstraction has 310 states and 369 transitions. [2021-05-06 05:56:05,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.0597014925373136) internal successors, (138), 64 states have internal predecessors, (138), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 369 transitions. [2021-05-06 05:56:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-05-06 05:56:05,645 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:05,645 INFO L523 BasicCegarLoop]: trace histogram [60, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:05,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-06 05:56:05,863 INFO L428 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:05,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:05,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1143998184, now seen corresponding path program 59 times [2021-05-06 05:56:05,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:05,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546281184] [2021-05-06 05:56:05,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:07,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:07,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546281184] [2021-05-06 05:56:07,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546281184] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:07,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203785640] [2021-05-06 05:56:07,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:07,366 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-05-06 05:56:07,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:07,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 63 conjunts are in the unsatisfiable core [2021-05-06 05:56:07,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:07,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:07,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203785640] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:07,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:07,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64] total 68 [2021-05-06 05:56:07,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261274525] [2021-05-06 05:56:07,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-05-06 05:56:07,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:07,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-05-06 05:56:07,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1965, Invalid=2591, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:56:07,620 INFO L87 Difference]: Start difference. First operand 310 states and 369 transitions. Second operand has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 65 states have internal predecessors, (140), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:10,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:10,815 INFO L93 Difference]: Finished difference Result 326 states and 387 transitions. [2021-05-06 05:56:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-06 05:56:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 65 states have internal predecessors, (140), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2021-05-06 05:56:10,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:10,816 INFO L225 Difference]: With dead ends: 326 [2021-05-06 05:56:10,816 INFO L226 Difference]: Without dead ends: 322 [2021-05-06 05:56:10,817 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2487 ImplicationChecksByTransitivity, 3863.8ms TimeCoverageRelationStatistics Valid=5759, Invalid=11011, Unknown=0, NotChecked=0, Total=16770 [2021-05-06 05:56:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-05-06 05:56:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 315. [2021-05-06 05:56:10,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 310 states have (on average 1.196774193548387) internal successors, (371), 310 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 375 transitions. [2021-05-06 05:56:10,819 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 375 transitions. Word has length 135 [2021-05-06 05:56:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:10,819 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 375 transitions. [2021-05-06 05:56:10,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 65 states have internal predecessors, (140), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 375 transitions. [2021-05-06 05:56:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-06 05:56:10,820 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:10,820 INFO L523 BasicCegarLoop]: trace histogram [61, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:11,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:11,036 INFO L428 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:11,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:11,037 INFO L82 PathProgramCache]: Analyzing trace with hash 35180372, now seen corresponding path program 60 times [2021-05-06 05:56:11,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:11,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470211054] [2021-05-06 05:56:11,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:12,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:12,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470211054] [2021-05-06 05:56:12,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470211054] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:12,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495743331] [2021-05-06 05:56:12,587 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:12,725 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-05-06 05:56:12,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:12,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 64 conjunts are in the unsatisfiable core [2021-05-06 05:56:12,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:12,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:12,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495743331] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:12,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:12,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 65] total 69 [2021-05-06 05:56:12,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163999378] [2021-05-06 05:56:12,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-05-06 05:56:12,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:12,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-05-06 05:56:12,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2028, Invalid=2664, Unknown=0, NotChecked=0, Total=4692 [2021-05-06 05:56:12,990 INFO L87 Difference]: Start difference. First operand 315 states and 375 transitions. Second operand has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 66 states have internal predecessors, (142), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:16,231 INFO L93 Difference]: Finished difference Result 331 states and 393 transitions. [2021-05-06 05:56:16,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-06 05:56:16,231 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 66 states have internal predecessors, (142), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 137 [2021-05-06 05:56:16,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:16,232 INFO L225 Difference]: With dead ends: 331 [2021-05-06 05:56:16,232 INFO L226 Difference]: Without dead ends: 327 [2021-05-06 05:56:16,233 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2559 ImplicationChecksByTransitivity, 4123.2ms TimeCoverageRelationStatistics Valid=5946, Invalid=11346, Unknown=0, NotChecked=0, Total=17292 [2021-05-06 05:56:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-05-06 05:56:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 320. [2021-05-06 05:56:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.1968253968253968) internal successors, (377), 315 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 381 transitions. [2021-05-06 05:56:16,235 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 381 transitions. Word has length 137 [2021-05-06 05:56:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:16,235 INFO L480 AbstractCegarLoop]: Abstraction has 320 states and 381 transitions. [2021-05-06 05:56:16,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.0579710144927534) internal successors, (142), 66 states have internal predecessors, (142), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 381 transitions. [2021-05-06 05:56:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-05-06 05:56:16,237 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:16,237 INFO L523 BasicCegarLoop]: trace histogram [62, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:16,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-05-06 05:56:16,454 INFO L428 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:16,454 INFO L82 PathProgramCache]: Analyzing trace with hash -645593456, now seen corresponding path program 61 times [2021-05-06 05:56:16,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:16,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637273567] [2021-05-06 05:56:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:18,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:18,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637273567] [2021-05-06 05:56:18,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637273567] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:18,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411784698] [2021-05-06 05:56:18,126 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:18,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 65 conjunts are in the unsatisfiable core [2021-05-06 05:56:18,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:18,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:18,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411784698] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:18,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:18,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 66] total 70 [2021-05-06 05:56:18,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160366256] [2021-05-06 05:56:18,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-05-06 05:56:18,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:18,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-05-06 05:56:18,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2092, Invalid=2738, Unknown=0, NotChecked=0, Total=4830 [2021-05-06 05:56:18,499 INFO L87 Difference]: Start difference. First operand 320 states and 381 transitions. Second operand has 70 states, 70 states have (on average 2.057142857142857) internal successors, (144), 67 states have internal predecessors, (144), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:21,947 INFO L93 Difference]: Finished difference Result 336 states and 399 transitions. [2021-05-06 05:56:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-06 05:56:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.057142857142857) internal successors, (144), 67 states have internal predecessors, (144), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2021-05-06 05:56:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:21,949 INFO L225 Difference]: With dead ends: 336 [2021-05-06 05:56:21,949 INFO L226 Difference]: Without dead ends: 332 [2021-05-06 05:56:21,950 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2632 ImplicationChecksByTransitivity, 4434.7ms TimeCoverageRelationStatistics Valid=6136, Invalid=11686, Unknown=0, NotChecked=0, Total=17822 [2021-05-06 05:56:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-05-06 05:56:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 325. [2021-05-06 05:56:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.196875) internal successors, (383), 320 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 387 transitions. [2021-05-06 05:56:21,953 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 387 transitions. Word has length 139 [2021-05-06 05:56:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:21,953 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 387 transitions. [2021-05-06 05:56:21,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 2.057142857142857) internal successors, (144), 67 states have internal predecessors, (144), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 387 transitions. [2021-05-06 05:56:21,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-05-06 05:56:21,954 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:21,954 INFO L523 BasicCegarLoop]: trace histogram [63, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:22,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:22,169 INFO L428 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:22,170 INFO L82 PathProgramCache]: Analyzing trace with hash -2034213172, now seen corresponding path program 62 times [2021-05-06 05:56:22,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:22,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483641793] [2021-05-06 05:56:22,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:23,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:23,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483641793] [2021-05-06 05:56:23,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483641793] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:23,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375043570] [2021-05-06 05:56:23,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:23,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:56:23,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:23,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 66 conjunts are in the unsatisfiable core [2021-05-06 05:56:23,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:23,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:23,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:24,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375043570] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:24,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:24,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 67] total 71 [2021-05-06 05:56:24,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273324653] [2021-05-06 05:56:24,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-05-06 05:56:24,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:24,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-05-06 05:56:24,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2157, Invalid=2813, Unknown=0, NotChecked=0, Total=4970 [2021-05-06 05:56:24,253 INFO L87 Difference]: Start difference. First operand 325 states and 387 transitions. Second operand has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 68 states have internal predecessors, (146), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:27,728 INFO L93 Difference]: Finished difference Result 341 states and 405 transitions. [2021-05-06 05:56:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-05-06 05:56:27,728 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 68 states have internal predecessors, (146), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2021-05-06 05:56:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:27,729 INFO L225 Difference]: With dead ends: 341 [2021-05-06 05:56:27,729 INFO L226 Difference]: Without dead ends: 337 [2021-05-06 05:56:27,730 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2706 ImplicationChecksByTransitivity, 4466.5ms TimeCoverageRelationStatistics Valid=6329, Invalid=12031, Unknown=0, NotChecked=0, Total=18360 [2021-05-06 05:56:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-05-06 05:56:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 330. [2021-05-06 05:56:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 325 states have (on average 1.196923076923077) internal successors, (389), 325 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 393 transitions. [2021-05-06 05:56:27,733 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 393 transitions. Word has length 141 [2021-05-06 05:56:27,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:27,733 INFO L480 AbstractCegarLoop]: Abstraction has 330 states and 393 transitions. [2021-05-06 05:56:27,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 71 states, 71 states have (on average 2.056338028169014) internal successors, (146), 68 states have internal predecessors, (146), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 393 transitions. [2021-05-06 05:56:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-06 05:56:27,733 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:27,733 INFO L523 BasicCegarLoop]: trace histogram [64, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:27,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-05-06 05:56:27,949 INFO L428 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash -762931192, now seen corresponding path program 63 times [2021-05-06 05:56:27,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:27,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753237894] [2021-05-06 05:56:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:29,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:29,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:29,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753237894] [2021-05-06 05:56:29,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753237894] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:29,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001862017] [2021-05-06 05:56:29,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:29,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-05-06 05:56:29,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:29,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 67 conjunts are in the unsatisfiable core [2021-05-06 05:56:29,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:29,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:29,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:30,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:30,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001862017] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:30,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:30,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68] total 72 [2021-05-06 05:56:30,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803033902] [2021-05-06 05:56:30,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states [2021-05-06 05:56:30,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:30,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-05-06 05:56:30,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2223, Invalid=2889, Unknown=0, NotChecked=0, Total=5112 [2021-05-06 05:56:30,053 INFO L87 Difference]: Start difference. First operand 330 states and 393 transitions. Second operand has 72 states, 72 states have (on average 2.0555555555555554) internal successors, (148), 69 states have internal predecessors, (148), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:33,470 INFO L93 Difference]: Finished difference Result 346 states and 411 transitions. [2021-05-06 05:56:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-06 05:56:33,471 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.0555555555555554) internal successors, (148), 69 states have internal predecessors, (148), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2021-05-06 05:56:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:33,472 INFO L225 Difference]: With dead ends: 346 [2021-05-06 05:56:33,472 INFO L226 Difference]: Without dead ends: 342 [2021-05-06 05:56:33,472 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2781 ImplicationChecksByTransitivity, 4436.7ms TimeCoverageRelationStatistics Valid=6525, Invalid=12381, Unknown=0, NotChecked=0, Total=18906 [2021-05-06 05:56:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-05-06 05:56:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 335. [2021-05-06 05:56:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 330 states have (on average 1.196969696969697) internal successors, (395), 330 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 399 transitions. [2021-05-06 05:56:33,475 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 399 transitions. Word has length 143 [2021-05-06 05:56:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:33,475 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 399 transitions. [2021-05-06 05:56:33,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 72 states, 72 states have (on average 2.0555555555555554) internal successors, (148), 69 states have internal predecessors, (148), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 399 transitions. [2021-05-06 05:56:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-05-06 05:56:33,476 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:33,476 INFO L523 BasicCegarLoop]: trace histogram [65, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:33,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:33,693 INFO L428 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:33,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1168339524, now seen corresponding path program 64 times [2021-05-06 05:56:33,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:33,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852470058] [2021-05-06 05:56:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:35,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:35,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852470058] [2021-05-06 05:56:35,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852470058] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:35,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178630014] [2021-05-06 05:56:35,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:35,580 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:56:35,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:35,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 68 conjunts are in the unsatisfiable core [2021-05-06 05:56:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:35,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:35,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178630014] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:35,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:35,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 69] total 73 [2021-05-06 05:56:35,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690961159] [2021-05-06 05:56:35,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-05-06 05:56:35,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:35,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-05-06 05:56:35,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2290, Invalid=2966, Unknown=0, NotChecked=0, Total=5256 [2021-05-06 05:56:35,857 INFO L87 Difference]: Start difference. First operand 335 states and 399 transitions. Second operand has 73 states, 73 states have (on average 2.0547945205479454) internal successors, (150), 70 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:39,535 INFO L93 Difference]: Finished difference Result 351 states and 417 transitions. [2021-05-06 05:56:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-05-06 05:56:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 2.0547945205479454) internal successors, (150), 70 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2021-05-06 05:56:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:39,536 INFO L225 Difference]: With dead ends: 351 [2021-05-06 05:56:39,536 INFO L226 Difference]: Without dead ends: 347 [2021-05-06 05:56:39,537 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2857 ImplicationChecksByTransitivity, 4660.7ms TimeCoverageRelationStatistics Valid=6724, Invalid=12736, Unknown=0, NotChecked=0, Total=19460 [2021-05-06 05:56:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-05-06 05:56:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 340. [2021-05-06 05:56:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.1970149253731344) internal successors, (401), 335 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 405 transitions. [2021-05-06 05:56:39,539 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 405 transitions. Word has length 145 [2021-05-06 05:56:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:39,540 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 405 transitions. [2021-05-06 05:56:39,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.0547945205479454) internal successors, (150), 70 states have internal predecessors, (150), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 405 transitions. [2021-05-06 05:56:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-05-06 05:56:39,540 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:39,540 INFO L523 BasicCegarLoop]: trace histogram [66, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:39,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-05-06 05:56:39,755 INFO L428 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:39,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1693625728, now seen corresponding path program 65 times [2021-05-06 05:56:39,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:39,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739554248] [2021-05-06 05:56:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:41,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4290 backedges. 0 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:41,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:41,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739554248] [2021-05-06 05:56:41,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739554248] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:41,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040002046] [2021-05-06 05:56:41,571 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:41,698 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-05-06 05:56:41,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 69 conjunts are in the unsatisfiable core [2021-05-06 05:56:41,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:41,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4290 backedges. 0 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:41,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040002046] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:41,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:41,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 70] total 74 [2021-05-06 05:56:41,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043707948] [2021-05-06 05:56:41,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-05-06 05:56:41,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:41,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-05-06 05:56:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2358, Invalid=3044, Unknown=0, NotChecked=0, Total=5402 [2021-05-06 05:56:41,970 INFO L87 Difference]: Start difference. First operand 340 states and 405 transitions. Second operand has 74 states, 74 states have (on average 2.054054054054054) internal successors, (152), 71 states have internal predecessors, (152), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:45,671 INFO L93 Difference]: Finished difference Result 356 states and 423 transitions. [2021-05-06 05:56:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-06 05:56:45,671 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.054054054054054) internal successors, (152), 71 states have internal predecessors, (152), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2021-05-06 05:56:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:45,672 INFO L225 Difference]: With dead ends: 356 [2021-05-06 05:56:45,672 INFO L226 Difference]: Without dead ends: 352 [2021-05-06 05:56:45,673 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2934 ImplicationChecksByTransitivity, 4727.0ms TimeCoverageRelationStatistics Valid=6926, Invalid=13096, Unknown=0, NotChecked=0, Total=20022 [2021-05-06 05:56:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-05-06 05:56:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2021-05-06 05:56:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 340 states have (on average 1.1970588235294117) internal successors, (407), 340 states have internal predecessors, (407), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 411 transitions. [2021-05-06 05:56:45,675 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 411 transitions. Word has length 147 [2021-05-06 05:56:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:45,675 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 411 transitions. [2021-05-06 05:56:45,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 2.054054054054054) internal successors, (152), 71 states have internal predecessors, (152), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 411 transitions. [2021-05-06 05:56:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-05-06 05:56:45,676 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:45,676 INFO L523 BasicCegarLoop]: trace histogram [67, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:45,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-05-06 05:56:45,893 INFO L428 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:45,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:45,893 INFO L82 PathProgramCache]: Analyzing trace with hash -312473156, now seen corresponding path program 66 times [2021-05-06 05:56:45,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:45,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167106619] [2021-05-06 05:56:45,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:47,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 0 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:47,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:47,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167106619] [2021-05-06 05:56:47,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167106619] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:47,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965484746] [2021-05-06 05:56:47,791 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:47,933 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-05-06 05:56:47,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:56:47,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 70 conjunts are in the unsatisfiable core [2021-05-06 05:56:47,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:47,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:47,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 0 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:48,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965484746] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:48,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:48,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71] total 75 [2021-05-06 05:56:48,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825895172] [2021-05-06 05:56:48,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-05-06 05:56:48,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:48,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-05-06 05:56:48,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2427, Invalid=3123, Unknown=0, NotChecked=0, Total=5550 [2021-05-06 05:56:48,215 INFO L87 Difference]: Start difference. First operand 345 states and 411 transitions. Second operand has 75 states, 75 states have (on average 2.0533333333333332) internal successors, (154), 72 states have internal predecessors, (154), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:52,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:52,104 INFO L93 Difference]: Finished difference Result 361 states and 429 transitions. [2021-05-06 05:56:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-06 05:56:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.0533333333333332) internal successors, (154), 72 states have internal predecessors, (154), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2021-05-06 05:56:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:52,106 INFO L225 Difference]: With dead ends: 361 [2021-05-06 05:56:52,106 INFO L226 Difference]: Without dead ends: 357 [2021-05-06 05:56:52,107 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3012 ImplicationChecksByTransitivity, 4967.1ms TimeCoverageRelationStatistics Valid=7131, Invalid=13461, Unknown=0, NotChecked=0, Total=20592 [2021-05-06 05:56:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-05-06 05:56:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2021-05-06 05:56:52,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.1971014492753622) internal successors, (413), 345 states have internal predecessors, (413), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 417 transitions. [2021-05-06 05:56:52,110 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 417 transitions. Word has length 149 [2021-05-06 05:56:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:52,110 INFO L480 AbstractCegarLoop]: Abstraction has 350 states and 417 transitions. [2021-05-06 05:56:52,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 2.0533333333333332) internal successors, (154), 72 states have internal predecessors, (154), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 417 transitions. [2021-05-06 05:56:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-05-06 05:56:52,111 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:52,111 INFO L523 BasicCegarLoop]: trace histogram [68, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:52,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-05-06 05:56:52,333 INFO L428 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:52,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:52,333 INFO L82 PathProgramCache]: Analyzing trace with hash 266815224, now seen corresponding path program 67 times [2021-05-06 05:56:52,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:52,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038423519] [2021-05-06 05:56:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:54,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:56:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:54,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:56:54,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038423519] [2021-05-06 05:56:54,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038423519] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:54,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726268515] [2021-05-06 05:56:54,274 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:56:54,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 71 conjunts are in the unsatisfiable core [2021-05-06 05:56:54,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:56:54,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:56:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:56:54,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726268515] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:56:54,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:56:54,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 72] total 76 [2021-05-06 05:56:54,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760589658] [2021-05-06 05:56:54,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-06 05:56:54,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:56:54,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-06 05:56:54,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=3203, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:56:54,707 INFO L87 Difference]: Start difference. First operand 350 states and 417 transitions. Second operand has 76 states, 76 states have (on average 2.0526315789473686) internal successors, (156), 73 states have internal predecessors, (156), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:56:58,660 INFO L93 Difference]: Finished difference Result 366 states and 435 transitions. [2021-05-06 05:56:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-06 05:56:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.0526315789473686) internal successors, (156), 73 states have internal predecessors, (156), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2021-05-06 05:56:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:56:58,662 INFO L225 Difference]: With dead ends: 366 [2021-05-06 05:56:58,662 INFO L226 Difference]: Without dead ends: 362 [2021-05-06 05:56:58,662 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 5118.8ms TimeCoverageRelationStatistics Valid=7339, Invalid=13831, Unknown=0, NotChecked=0, Total=21170 [2021-05-06 05:56:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-05-06 05:56:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2021-05-06 05:56:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.197142857142857) internal successors, (419), 350 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 423 transitions. [2021-05-06 05:56:58,665 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 423 transitions. Word has length 151 [2021-05-06 05:56:58,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:56:58,665 INFO L480 AbstractCegarLoop]: Abstraction has 355 states and 423 transitions. [2021-05-06 05:56:58,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 2.0526315789473686) internal successors, (156), 73 states have internal predecessors, (156), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:56:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 423 transitions. [2021-05-06 05:56:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-05-06 05:56:58,666 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:56:58,666 INFO L523 BasicCegarLoop]: trace histogram [69, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:56:58,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:56:58,882 INFO L428 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:56:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:56:58,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1382800076, now seen corresponding path program 68 times [2021-05-06 05:56:58,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:56:58,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603938755] [2021-05-06 05:56:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:56:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 0 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:01,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:01,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603938755] [2021-05-06 05:57:01,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603938755] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:01,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064990574] [2021-05-06 05:57:01,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:01,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:57:01,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:01,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-06 05:57:01,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:01,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 0 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:01,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064990574] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:01,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:01,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 73] total 77 [2021-05-06 05:57:01,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336556806] [2021-05-06 05:57:01,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-05-06 05:57:01,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:01,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-05-06 05:57:01,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2568, Invalid=3284, Unknown=0, NotChecked=0, Total=5852 [2021-05-06 05:57:01,418 INFO L87 Difference]: Start difference. First operand 355 states and 423 transitions. Second operand has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 74 states have internal predecessors, (158), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:05,231 INFO L93 Difference]: Finished difference Result 371 states and 441 transitions. [2021-05-06 05:57:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-05-06 05:57:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 74 states have internal predecessors, (158), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2021-05-06 05:57:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:05,232 INFO L225 Difference]: With dead ends: 371 [2021-05-06 05:57:05,232 INFO L226 Difference]: Without dead ends: 367 [2021-05-06 05:57:05,233 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3171 ImplicationChecksByTransitivity, 5185.1ms TimeCoverageRelationStatistics Valid=7550, Invalid=14206, Unknown=0, NotChecked=0, Total=21756 [2021-05-06 05:57:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-05-06 05:57:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 360. [2021-05-06 05:57:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.1971830985915493) internal successors, (425), 355 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 429 transitions. [2021-05-06 05:57:05,235 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 429 transitions. Word has length 153 [2021-05-06 05:57:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:05,235 INFO L480 AbstractCegarLoop]: Abstraction has 360 states and 429 transitions. [2021-05-06 05:57:05,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 74 states have internal predecessors, (158), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 429 transitions. [2021-05-06 05:57:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-05-06 05:57:05,236 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:05,237 INFO L523 BasicCegarLoop]: trace histogram [70, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:05,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-05-06 05:57:05,453 INFO L428 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:05,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:05,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1820171152, now seen corresponding path program 69 times [2021-05-06 05:57:05,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:05,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547633420] [2021-05-06 05:57:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4830 backedges. 0 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:07,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:07,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547633420] [2021-05-06 05:57:07,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547633420] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:07,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864279809] [2021-05-06 05:57:07,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:07,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-05-06 05:57:07,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:07,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-06 05:57:07,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:07,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4830 backedges. 0 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:07,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864279809] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:07,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:07,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 74] total 78 [2021-05-06 05:57:07,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178751281] [2021-05-06 05:57:07,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-06 05:57:07,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-06 05:57:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2640, Invalid=3366, Unknown=0, NotChecked=0, Total=6006 [2021-05-06 05:57:07,927 INFO L87 Difference]: Start difference. First operand 360 states and 429 transitions. Second operand has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 75 states have internal predecessors, (160), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:11,916 INFO L93 Difference]: Finished difference Result 376 states and 447 transitions. [2021-05-06 05:57:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-06 05:57:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 75 states have internal predecessors, (160), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2021-05-06 05:57:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:11,917 INFO L225 Difference]: With dead ends: 376 [2021-05-06 05:57:11,917 INFO L226 Difference]: Without dead ends: 372 [2021-05-06 05:57:11,918 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3252 ImplicationChecksByTransitivity, 5171.0ms TimeCoverageRelationStatistics Valid=7764, Invalid=14586, Unknown=0, NotChecked=0, Total=22350 [2021-05-06 05:57:11,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-05-06 05:57:11,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 365. [2021-05-06 05:57:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.1972222222222222) internal successors, (431), 360 states have internal predecessors, (431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 435 transitions. [2021-05-06 05:57:11,921 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 435 transitions. Word has length 155 [2021-05-06 05:57:11,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:11,921 INFO L480 AbstractCegarLoop]: Abstraction has 365 states and 435 transitions. [2021-05-06 05:57:11,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 2.051282051282051) internal successors, (160), 75 states have internal predecessors, (160), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:11,921 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 435 transitions. [2021-05-06 05:57:11,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-05-06 05:57:11,921 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:11,922 INFO L523 BasicCegarLoop]: trace histogram [71, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:12,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:12,131 INFO L428 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:12,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1226980180, now seen corresponding path program 70 times [2021-05-06 05:57:12,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:12,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798724861] [2021-05-06 05:57:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:14,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:14,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:14,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798724861] [2021-05-06 05:57:14,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798724861] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:14,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247564214] [2021-05-06 05:57:14,336 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:14,423 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:57:14,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:14,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 74 conjunts are in the unsatisfiable core [2021-05-06 05:57:14,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:14,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:14,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247564214] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:14,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:14,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 75] total 79 [2021-05-06 05:57:14,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980414646] [2021-05-06 05:57:14,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-05-06 05:57:14,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:14,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-05-06 05:57:14,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2713, Invalid=3449, Unknown=0, NotChecked=0, Total=6162 [2021-05-06 05:57:14,736 INFO L87 Difference]: Start difference. First operand 365 states and 435 transitions. Second operand has 79 states, 79 states have (on average 2.050632911392405) internal successors, (162), 76 states have internal predecessors, (162), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:18,862 INFO L93 Difference]: Finished difference Result 381 states and 453 transitions. [2021-05-06 05:57:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-06 05:57:18,863 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 2.050632911392405) internal successors, (162), 76 states have internal predecessors, (162), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2021-05-06 05:57:18,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:18,863 INFO L225 Difference]: With dead ends: 381 [2021-05-06 05:57:18,864 INFO L226 Difference]: Without dead ends: 377 [2021-05-06 05:57:18,864 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3334 ImplicationChecksByTransitivity, 5462.9ms TimeCoverageRelationStatistics Valid=7981, Invalid=14971, Unknown=0, NotChecked=0, Total=22952 [2021-05-06 05:57:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-05-06 05:57:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 370. [2021-05-06 05:57:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.1972602739726028) internal successors, (437), 365 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 441 transitions. [2021-05-06 05:57:18,867 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 441 transitions. Word has length 157 [2021-05-06 05:57:18,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:18,867 INFO L480 AbstractCegarLoop]: Abstraction has 370 states and 441 transitions. [2021-05-06 05:57:18,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 2.050632911392405) internal successors, (162), 76 states have internal predecessors, (162), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 441 transitions. [2021-05-06 05:57:18,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-05-06 05:57:18,868 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:18,868 INFO L523 BasicCegarLoop]: trace histogram [72, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:19,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-05-06 05:57:19,081 INFO L428 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:19,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:19,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1893860840, now seen corresponding path program 71 times [2021-05-06 05:57:19,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:19,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183354252] [2021-05-06 05:57:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:21,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:21,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:21,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183354252] [2021-05-06 05:57:21,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183354252] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:21,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559954375] [2021-05-06 05:57:21,246 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:21,395 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-05-06 05:57:21,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:21,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 75 conjunts are in the unsatisfiable core [2021-05-06 05:57:21,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:21,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:21,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559954375] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:21,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:21,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76] total 80 [2021-05-06 05:57:21,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958373055] [2021-05-06 05:57:21,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-06 05:57:21,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:21,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-06 05:57:21,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2787, Invalid=3533, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:57:21,692 INFO L87 Difference]: Start difference. First operand 370 states and 441 transitions. Second operand has 80 states, 80 states have (on average 2.05) internal successors, (164), 77 states have internal predecessors, (164), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:26,088 INFO L93 Difference]: Finished difference Result 386 states and 459 transitions. [2021-05-06 05:57:26,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-05-06 05:57:26,089 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 2.05) internal successors, (164), 77 states have internal predecessors, (164), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2021-05-06 05:57:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:26,090 INFO L225 Difference]: With dead ends: 386 [2021-05-06 05:57:26,090 INFO L226 Difference]: Without dead ends: 382 [2021-05-06 05:57:26,091 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3417 ImplicationChecksByTransitivity, 5614.7ms TimeCoverageRelationStatistics Valid=8201, Invalid=15361, Unknown=0, NotChecked=0, Total=23562 [2021-05-06 05:57:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-05-06 05:57:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 375. [2021-05-06 05:57:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.1972972972972973) internal successors, (443), 370 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 447 transitions. [2021-05-06 05:57:26,095 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 447 transitions. Word has length 159 [2021-05-06 05:57:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:26,095 INFO L480 AbstractCegarLoop]: Abstraction has 375 states and 447 transitions. [2021-05-06 05:57:26,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 2.05) internal successors, (164), 77 states have internal predecessors, (164), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 447 transitions. [2021-05-06 05:57:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-06 05:57:26,096 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:26,096 INFO L523 BasicCegarLoop]: trace histogram [73, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:26,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:26,314 INFO L428 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:26,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1160058844, now seen corresponding path program 72 times [2021-05-06 05:57:26,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:26,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559331462] [2021-05-06 05:57:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:28,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5256 backedges. 0 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:28,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:28,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559331462] [2021-05-06 05:57:28,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559331462] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:28,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519756577] [2021-05-06 05:57:28,503 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:28,683 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-05-06 05:57:28,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:28,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 76 conjunts are in the unsatisfiable core [2021-05-06 05:57:28,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:28,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:28,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5256 backedges. 0 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:29,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519756577] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:29,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:29,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 77] total 81 [2021-05-06 05:57:29,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991674263] [2021-05-06 05:57:29,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-05-06 05:57:29,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:29,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-05-06 05:57:29,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2862, Invalid=3618, Unknown=0, NotChecked=0, Total=6480 [2021-05-06 05:57:29,010 INFO L87 Difference]: Start difference. First operand 375 states and 447 transitions. Second operand has 81 states, 81 states have (on average 2.049382716049383) internal successors, (166), 78 states have internal predecessors, (166), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:33,243 INFO L93 Difference]: Finished difference Result 391 states and 465 transitions. [2021-05-06 05:57:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-05-06 05:57:33,243 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 2.049382716049383) internal successors, (166), 78 states have internal predecessors, (166), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2021-05-06 05:57:33,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:33,244 INFO L225 Difference]: With dead ends: 391 [2021-05-06 05:57:33,244 INFO L226 Difference]: Without dead ends: 387 [2021-05-06 05:57:33,245 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3501 ImplicationChecksByTransitivity, 5646.9ms TimeCoverageRelationStatistics Valid=8424, Invalid=15756, Unknown=0, NotChecked=0, Total=24180 [2021-05-06 05:57:33,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-05-06 05:57:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 380. [2021-05-06 05:57:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.1973333333333334) internal successors, (449), 375 states have internal predecessors, (449), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 453 transitions. [2021-05-06 05:57:33,247 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 453 transitions. Word has length 161 [2021-05-06 05:57:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:33,248 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 453 transitions. [2021-05-06 05:57:33,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 2.049382716049383) internal successors, (166), 78 states have internal predecessors, (166), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 453 transitions. [2021-05-06 05:57:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-05-06 05:57:33,248 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:33,248 INFO L523 BasicCegarLoop]: trace histogram [74, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:33,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:33,465 INFO L428 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:33,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1780755296, now seen corresponding path program 73 times [2021-05-06 05:57:33,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:33,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733930238] [2021-05-06 05:57:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5402 backedges. 0 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:35,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:35,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733930238] [2021-05-06 05:57:35,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733930238] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:35,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539330356] [2021-05-06 05:57:35,748 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:35,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 77 conjunts are in the unsatisfiable core [2021-05-06 05:57:35,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:35,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:35,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 5402 backedges. 0 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:36,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539330356] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:36,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:36,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 78] total 82 [2021-05-06 05:57:36,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882882445] [2021-05-06 05:57:36,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-05-06 05:57:36,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:36,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-05-06 05:57:36,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2938, Invalid=3704, Unknown=0, NotChecked=0, Total=6642 [2021-05-06 05:57:36,179 INFO L87 Difference]: Start difference. First operand 380 states and 453 transitions. Second operand has 82 states, 82 states have (on average 2.048780487804878) internal successors, (168), 79 states have internal predecessors, (168), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:41,034 INFO L93 Difference]: Finished difference Result 396 states and 471 transitions. [2021-05-06 05:57:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-06 05:57:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 2.048780487804878) internal successors, (168), 79 states have internal predecessors, (168), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2021-05-06 05:57:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:41,035 INFO L225 Difference]: With dead ends: 396 [2021-05-06 05:57:41,035 INFO L226 Difference]: Without dead ends: 392 [2021-05-06 05:57:41,036 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3586 ImplicationChecksByTransitivity, 6077.8ms TimeCoverageRelationStatistics Valid=8650, Invalid=16156, Unknown=0, NotChecked=0, Total=24806 [2021-05-06 05:57:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-05-06 05:57:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 385. [2021-05-06 05:57:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.1973684210526316) internal successors, (455), 380 states have internal predecessors, (455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 459 transitions. [2021-05-06 05:57:41,039 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 459 transitions. Word has length 163 [2021-05-06 05:57:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:41,039 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 459 transitions. [2021-05-06 05:57:41,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 2.048780487804878) internal successors, (168), 79 states have internal predecessors, (168), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 459 transitions. [2021-05-06 05:57:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-05-06 05:57:41,039 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:41,040 INFO L523 BasicCegarLoop]: trace histogram [75, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:41,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:41,256 INFO L428 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:41,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1814663068, now seen corresponding path program 74 times [2021-05-06 05:57:41,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:41,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423807327] [2021-05-06 05:57:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:43,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5550 backedges. 0 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:43,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:43,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423807327] [2021-05-06 05:57:43,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423807327] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:43,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110962821] [2021-05-06 05:57:43,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:43,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:57:43,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:43,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 78 conjunts are in the unsatisfiable core [2021-05-06 05:57:43,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:43,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5550 backedges. 0 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:43,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110962821] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:43,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:43,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 79] total 83 [2021-05-06 05:57:43,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077983678] [2021-05-06 05:57:43,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-05-06 05:57:43,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:43,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-05-06 05:57:43,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3015, Invalid=3791, Unknown=0, NotChecked=0, Total=6806 [2021-05-06 05:57:43,998 INFO L87 Difference]: Start difference. First operand 385 states and 459 transitions. Second operand has 83 states, 83 states have (on average 2.0481927710843375) internal successors, (170), 80 states have internal predecessors, (170), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:48,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:48,352 INFO L93 Difference]: Finished difference Result 401 states and 477 transitions. [2021-05-06 05:57:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-05-06 05:57:48,352 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.0481927710843375) internal successors, (170), 80 states have internal predecessors, (170), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2021-05-06 05:57:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:48,353 INFO L225 Difference]: With dead ends: 401 [2021-05-06 05:57:48,353 INFO L226 Difference]: Without dead ends: 397 [2021-05-06 05:57:48,355 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3672 ImplicationChecksByTransitivity, 5757.3ms TimeCoverageRelationStatistics Valid=8879, Invalid=16561, Unknown=0, NotChecked=0, Total=25440 [2021-05-06 05:57:48,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-05-06 05:57:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 390. [2021-05-06 05:57:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.1974025974025975) internal successors, (461), 385 states have internal predecessors, (461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 465 transitions. [2021-05-06 05:57:48,358 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 465 transitions. Word has length 165 [2021-05-06 05:57:48,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:48,358 INFO L480 AbstractCegarLoop]: Abstraction has 390 states and 465 transitions. [2021-05-06 05:57:48,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 83 states, 83 states have (on average 2.0481927710843375) internal successors, (170), 80 states have internal predecessors, (170), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:48,358 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 465 transitions. [2021-05-06 05:57:48,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-06 05:57:48,359 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:48,359 INFO L523 BasicCegarLoop]: trace histogram [76, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:48,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-05-06 05:57:48,576 INFO L428 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash 40293592, now seen corresponding path program 75 times [2021-05-06 05:57:48,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:48,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798131850] [2021-05-06 05:57:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:50,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:50,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:50,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798131850] [2021-05-06 05:57:50,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798131850] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:50,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687477500] [2021-05-06 05:57:50,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:50,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-05-06 05:57:50,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:50,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 79 conjunts are in the unsatisfiable core [2021-05-06 05:57:50,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:50,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:50,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:51,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687477500] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:51,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:51,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 80] total 84 [2021-05-06 05:57:51,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384353941] [2021-05-06 05:57:51,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-05-06 05:57:51,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:51,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-05-06 05:57:51,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3093, Invalid=3879, Unknown=0, NotChecked=0, Total=6972 [2021-05-06 05:57:51,094 INFO L87 Difference]: Start difference. First operand 390 states and 465 transitions. Second operand has 84 states, 84 states have (on average 2.0476190476190474) internal successors, (172), 81 states have internal predecessors, (172), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:57:55,423 INFO L93 Difference]: Finished difference Result 406 states and 483 transitions. [2021-05-06 05:57:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-06 05:57:55,423 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.0476190476190474) internal successors, (172), 81 states have internal predecessors, (172), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2021-05-06 05:57:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:57:55,424 INFO L225 Difference]: With dead ends: 406 [2021-05-06 05:57:55,424 INFO L226 Difference]: Without dead ends: 402 [2021-05-06 05:57:55,425 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3759 ImplicationChecksByTransitivity, 5510.3ms TimeCoverageRelationStatistics Valid=9111, Invalid=16971, Unknown=0, NotChecked=0, Total=26082 [2021-05-06 05:57:55,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-05-06 05:57:55,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 395. [2021-05-06 05:57:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.1974358974358974) internal successors, (467), 390 states have internal predecessors, (467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 471 transitions. [2021-05-06 05:57:55,431 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 471 transitions. Word has length 167 [2021-05-06 05:57:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:57:55,431 INFO L480 AbstractCegarLoop]: Abstraction has 395 states and 471 transitions. [2021-05-06 05:57:55,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 2.0476190476190474) internal successors, (172), 81 states have internal predecessors, (172), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:57:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 471 transitions. [2021-05-06 05:57:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-05-06 05:57:55,432 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:57:55,432 INFO L523 BasicCegarLoop]: trace histogram [77, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:57:55,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:55,645 INFO L428 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:57:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:57:55,645 INFO L82 PathProgramCache]: Analyzing trace with hash -26756332, now seen corresponding path program 76 times [2021-05-06 05:57:55,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:57:55,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279119170] [2021-05-06 05:57:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:57:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:58,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:57:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:57:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:58,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:57:58,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279119170] [2021-05-06 05:57:58,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279119170] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:58,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283511975] [2021-05-06 05:57:58,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:57:58,261 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:57:58,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:57:58,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 80 conjunts are in the unsatisfiable core [2021-05-06 05:57:58,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:57:58,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:57:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:57:58,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283511975] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:57:58,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:57:58,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 81] total 85 [2021-05-06 05:57:58,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445573891] [2021-05-06 05:57:58,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-05-06 05:57:58,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:57:58,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-05-06 05:57:58,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3172, Invalid=3968, Unknown=0, NotChecked=0, Total=7140 [2021-05-06 05:57:58,627 INFO L87 Difference]: Start difference. First operand 395 states and 471 transitions. Second operand has 85 states, 85 states have (on average 2.0470588235294116) internal successors, (174), 82 states have internal predecessors, (174), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:03,330 INFO L93 Difference]: Finished difference Result 411 states and 489 transitions. [2021-05-06 05:58:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-05-06 05:58:03,330 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 2.0470588235294116) internal successors, (174), 82 states have internal predecessors, (174), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2021-05-06 05:58:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:03,331 INFO L225 Difference]: With dead ends: 411 [2021-05-06 05:58:03,331 INFO L226 Difference]: Without dead ends: 407 [2021-05-06 05:58:03,332 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3847 ImplicationChecksByTransitivity, 6264.4ms TimeCoverageRelationStatistics Valid=9346, Invalid=17386, Unknown=0, NotChecked=0, Total=26732 [2021-05-06 05:58:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-05-06 05:58:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 400. [2021-05-06 05:58:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 395 states have (on average 1.1974683544303797) internal successors, (473), 395 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:03,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 477 transitions. [2021-05-06 05:58:03,335 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 477 transitions. Word has length 169 [2021-05-06 05:58:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:03,335 INFO L480 AbstractCegarLoop]: Abstraction has 400 states and 477 transitions. [2021-05-06 05:58:03,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 85 states, 85 states have (on average 2.0470588235294116) internal successors, (174), 82 states have internal predecessors, (174), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 477 transitions. [2021-05-06 05:58:03,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-05-06 05:58:03,336 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:03,336 INFO L523 BasicCegarLoop]: trace histogram [78, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:03,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:03,556 INFO L428 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:03,557 INFO L82 PathProgramCache]: Analyzing trace with hash -37223856, now seen corresponding path program 77 times [2021-05-06 05:58:03,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:03,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650460559] [2021-05-06 05:58:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:05,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:05,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:05,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650460559] [2021-05-06 05:58:05,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650460559] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:05,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488893934] [2021-05-06 05:58:05,874 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:06,028 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-05-06 05:58:06,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:06,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 81 conjunts are in the unsatisfiable core [2021-05-06 05:58:06,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:06,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:06,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488893934] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:06,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:06,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 82] total 86 [2021-05-06 05:58:06,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058250962] [2021-05-06 05:58:06,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-05-06 05:58:06,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:06,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-05-06 05:58:06,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3252, Invalid=4058, Unknown=0, NotChecked=0, Total=7310 [2021-05-06 05:58:06,390 INFO L87 Difference]: Start difference. First operand 400 states and 477 transitions. Second operand has 86 states, 86 states have (on average 2.046511627906977) internal successors, (176), 83 states have internal predecessors, (176), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:11,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:11,259 INFO L93 Difference]: Finished difference Result 416 states and 495 transitions. [2021-05-06 05:58:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-06 05:58:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 2.046511627906977) internal successors, (176), 83 states have internal predecessors, (176), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2021-05-06 05:58:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:11,261 INFO L225 Difference]: With dead ends: 416 [2021-05-06 05:58:11,261 INFO L226 Difference]: Without dead ends: 412 [2021-05-06 05:58:11,262 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3936 ImplicationChecksByTransitivity, 6116.8ms TimeCoverageRelationStatistics Valid=9584, Invalid=17806, Unknown=0, NotChecked=0, Total=27390 [2021-05-06 05:58:11,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-05-06 05:58:11,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 405. [2021-05-06 05:58:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 1.1975) internal successors, (479), 400 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 483 transitions. [2021-05-06 05:58:11,265 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 483 transitions. Word has length 171 [2021-05-06 05:58:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:11,265 INFO L480 AbstractCegarLoop]: Abstraction has 405 states and 483 transitions. [2021-05-06 05:58:11,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 2.046511627906977) internal successors, (176), 83 states have internal predecessors, (176), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 483 transitions. [2021-05-06 05:58:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-05-06 05:58:11,266 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:11,273 INFO L523 BasicCegarLoop]: trace histogram [79, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:11,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-05-06 05:58:11,490 INFO L428 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:11,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1506579828, now seen corresponding path program 78 times [2021-05-06 05:58:11,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:11,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043960710] [2021-05-06 05:58:11,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:13,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:13,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043960710] [2021-05-06 05:58:13,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043960710] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:13,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721909900] [2021-05-06 05:58:13,958 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:14,160 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2021-05-06 05:58:14,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:14,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 82 conjunts are in the unsatisfiable core [2021-05-06 05:58:14,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:14,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:14,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721909900] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:14,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:14,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 83] total 87 [2021-05-06 05:58:14,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556280768] [2021-05-06 05:58:14,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-05-06 05:58:14,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:14,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-05-06 05:58:14,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3333, Invalid=4149, Unknown=0, NotChecked=0, Total=7482 [2021-05-06 05:58:14,501 INFO L87 Difference]: Start difference. First operand 405 states and 483 transitions. Second operand has 87 states, 87 states have (on average 2.045977011494253) internal successors, (178), 84 states have internal predecessors, (178), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:19,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:19,374 INFO L93 Difference]: Finished difference Result 421 states and 501 transitions. [2021-05-06 05:58:19,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-05-06 05:58:19,375 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 2.045977011494253) internal successors, (178), 84 states have internal predecessors, (178), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2021-05-06 05:58:19,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:19,376 INFO L225 Difference]: With dead ends: 421 [2021-05-06 05:58:19,376 INFO L226 Difference]: Without dead ends: 417 [2021-05-06 05:58:19,378 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4026 ImplicationChecksByTransitivity, 6382.4ms TimeCoverageRelationStatistics Valid=9825, Invalid=18231, Unknown=0, NotChecked=0, Total=28056 [2021-05-06 05:58:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-05-06 05:58:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 410. [2021-05-06 05:58:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 405 states have (on average 1.1975308641975309) internal successors, (485), 405 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 489 transitions. [2021-05-06 05:58:19,381 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 489 transitions. Word has length 173 [2021-05-06 05:58:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:19,381 INFO L480 AbstractCegarLoop]: Abstraction has 410 states and 489 transitions. [2021-05-06 05:58:19,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 87 states, 87 states have (on average 2.045977011494253) internal successors, (178), 84 states have internal predecessors, (178), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 489 transitions. [2021-05-06 05:58:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-05-06 05:58:19,382 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:19,382 INFO L523 BasicCegarLoop]: trace histogram [80, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:19,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-05-06 05:58:19,597 INFO L428 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:19,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash -513428536, now seen corresponding path program 79 times [2021-05-06 05:58:19,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:19,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694263726] [2021-05-06 05:58:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:22,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:22,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:22,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694263726] [2021-05-06 05:58:22,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694263726] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:22,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324376167] [2021-05-06 05:58:22,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:22,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-06 05:58:22,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:22,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:22,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324376167] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:22,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:22,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 84] total 88 [2021-05-06 05:58:22,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665164557] [2021-05-06 05:58:22,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-06 05:58:22,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-06 05:58:22,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3415, Invalid=4241, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:58:22,694 INFO L87 Difference]: Start difference. First operand 410 states and 489 transitions. Second operand has 88 states, 88 states have (on average 2.0454545454545454) internal successors, (180), 85 states have internal predecessors, (180), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:27,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:27,794 INFO L93 Difference]: Finished difference Result 426 states and 507 transitions. [2021-05-06 05:58:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-06 05:58:27,794 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 2.0454545454545454) internal successors, (180), 85 states have internal predecessors, (180), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2021-05-06 05:58:27,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:27,795 INFO L225 Difference]: With dead ends: 426 [2021-05-06 05:58:27,795 INFO L226 Difference]: Without dead ends: 422 [2021-05-06 05:58:27,796 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4117 ImplicationChecksByTransitivity, 6773.4ms TimeCoverageRelationStatistics Valid=10069, Invalid=18661, Unknown=0, NotChecked=0, Total=28730 [2021-05-06 05:58:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-05-06 05:58:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 415. [2021-05-06 05:58:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 410 states have (on average 1.197560975609756) internal successors, (491), 410 states have internal predecessors, (491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 495 transitions. [2021-05-06 05:58:27,799 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 495 transitions. Word has length 175 [2021-05-06 05:58:27,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:27,799 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 495 transitions. [2021-05-06 05:58:27,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 2.0454545454545454) internal successors, (180), 85 states have internal predecessors, (180), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 495 transitions. [2021-05-06 05:58:27,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-05-06 05:58:27,800 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:27,800 INFO L523 BasicCegarLoop]: trace histogram [81, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:28,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:28,017 INFO L428 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash 422223364, now seen corresponding path program 80 times [2021-05-06 05:58:28,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:28,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297066021] [2021-05-06 05:58:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 0 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:30,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:30,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297066021] [2021-05-06 05:58:30,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297066021] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:30,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918750697] [2021-05-06 05:58:30,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:30,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:58:30,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:30,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 84 conjunts are in the unsatisfiable core [2021-05-06 05:58:30,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:30,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:30,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 0 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:31,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918750697] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:31,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:31,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 85] total 89 [2021-05-06 05:58:31,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460348805] [2021-05-06 05:58:31,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-06 05:58:31,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:31,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-06 05:58:31,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3498, Invalid=4334, Unknown=0, NotChecked=0, Total=7832 [2021-05-06 05:58:31,190 INFO L87 Difference]: Start difference. First operand 415 states and 495 transitions. Second operand has 89 states, 89 states have (on average 2.044943820224719) internal successors, (182), 86 states have internal predecessors, (182), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:36,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:36,216 INFO L93 Difference]: Finished difference Result 431 states and 513 transitions. [2021-05-06 05:58:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-06 05:58:36,217 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 2.044943820224719) internal successors, (182), 86 states have internal predecessors, (182), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 177 [2021-05-06 05:58:36,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:36,218 INFO L225 Difference]: With dead ends: 431 [2021-05-06 05:58:36,218 INFO L226 Difference]: Without dead ends: 427 [2021-05-06 05:58:36,219 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4209 ImplicationChecksByTransitivity, 6792.5ms TimeCoverageRelationStatistics Valid=10316, Invalid=19096, Unknown=0, NotChecked=0, Total=29412 [2021-05-06 05:58:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-05-06 05:58:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 420. [2021-05-06 05:58:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.1975903614457832) internal successors, (497), 415 states have internal predecessors, (497), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 501 transitions. [2021-05-06 05:58:36,222 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 501 transitions. Word has length 177 [2021-05-06 05:58:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:36,222 INFO L480 AbstractCegarLoop]: Abstraction has 420 states and 501 transitions. [2021-05-06 05:58:36,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 2.044943820224719) internal successors, (182), 86 states have internal predecessors, (182), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 501 transitions. [2021-05-06 05:58:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-05-06 05:58:36,223 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:36,223 INFO L523 BasicCegarLoop]: trace histogram [82, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:36,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:36,437 INFO L428 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:36,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:36,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1935534400, now seen corresponding path program 81 times [2021-05-06 05:58:36,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:36,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2173853] [2021-05-06 05:58:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 6642 backedges. 0 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:39,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:39,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2173853] [2021-05-06 05:58:39,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2173853] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:39,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908543508] [2021-05-06 05:58:39,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:39,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2021-05-06 05:58:39,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:39,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 85 conjunts are in the unsatisfiable core [2021-05-06 05:58:39,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:39,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6642 backedges. 0 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:39,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908543508] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:39,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:39,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 86] total 90 [2021-05-06 05:58:39,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376627663] [2021-05-06 05:58:39,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-06 05:58:39,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:39,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-06 05:58:39,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3582, Invalid=4428, Unknown=0, NotChecked=0, Total=8010 [2021-05-06 05:58:39,784 INFO L87 Difference]: Start difference. First operand 420 states and 501 transitions. Second operand has 90 states, 90 states have (on average 2.0444444444444443) internal successors, (184), 87 states have internal predecessors, (184), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:45,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:45,015 INFO L93 Difference]: Finished difference Result 436 states and 519 transitions. [2021-05-06 05:58:45,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-06 05:58:45,015 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 2.0444444444444443) internal successors, (184), 87 states have internal predecessors, (184), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2021-05-06 05:58:45,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:45,016 INFO L225 Difference]: With dead ends: 436 [2021-05-06 05:58:45,016 INFO L226 Difference]: Without dead ends: 432 [2021-05-06 05:58:45,017 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4302 ImplicationChecksByTransitivity, 6988.8ms TimeCoverageRelationStatistics Valid=10566, Invalid=19536, Unknown=0, NotChecked=0, Total=30102 [2021-05-06 05:58:45,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-05-06 05:58:45,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 425. [2021-05-06 05:58:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 420 states have (on average 1.1976190476190476) internal successors, (503), 420 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 507 transitions. [2021-05-06 05:58:45,020 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 507 transitions. Word has length 179 [2021-05-06 05:58:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:45,021 INFO L480 AbstractCegarLoop]: Abstraction has 425 states and 507 transitions. [2021-05-06 05:58:45,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 2.0444444444444443) internal successors, (184), 87 states have internal predecessors, (184), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 507 transitions. [2021-05-06 05:58:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-05-06 05:58:45,021 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:45,021 INFO L523 BasicCegarLoop]: trace histogram [83, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:45,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:45,239 INFO L428 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:45,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:45,239 INFO L82 PathProgramCache]: Analyzing trace with hash 233526652, now seen corresponding path program 82 times [2021-05-06 05:58:45,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:45,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525610515] [2021-05-06 05:58:45,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6806 backedges. 0 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:48,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:48,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525610515] [2021-05-06 05:58:48,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525610515] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:48,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261593701] [2021-05-06 05:58:48,103 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:48,202 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:58:48,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:48,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 86 conjunts are in the unsatisfiable core [2021-05-06 05:58:48,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:48,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6806 backedges. 0 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:48,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261593701] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:48,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:48,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 87] total 91 [2021-05-06 05:58:48,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979494391] [2021-05-06 05:58:48,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states [2021-05-06 05:58:48,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:48,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-05-06 05:58:48,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3667, Invalid=4523, Unknown=0, NotChecked=0, Total=8190 [2021-05-06 05:58:48,560 INFO L87 Difference]: Start difference. First operand 425 states and 507 transitions. Second operand has 91 states, 91 states have (on average 2.043956043956044) internal successors, (186), 88 states have internal predecessors, (186), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:58:53,971 INFO L93 Difference]: Finished difference Result 441 states and 525 transitions. [2021-05-06 05:58:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-05-06 05:58:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 2.043956043956044) internal successors, (186), 88 states have internal predecessors, (186), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2021-05-06 05:58:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:58:53,972 INFO L225 Difference]: With dead ends: 441 [2021-05-06 05:58:53,972 INFO L226 Difference]: Without dead ends: 437 [2021-05-06 05:58:53,974 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4396 ImplicationChecksByTransitivity, 7220.8ms TimeCoverageRelationStatistics Valid=10819, Invalid=19981, Unknown=0, NotChecked=0, Total=30800 [2021-05-06 05:58:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-05-06 05:58:53,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 430. [2021-05-06 05:58:53,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.1976470588235295) internal successors, (509), 425 states have internal predecessors, (509), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 513 transitions. [2021-05-06 05:58:53,978 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 513 transitions. Word has length 181 [2021-05-06 05:58:53,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:58:53,978 INFO L480 AbstractCegarLoop]: Abstraction has 430 states and 513 transitions. [2021-05-06 05:58:53,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 91 states, 91 states have (on average 2.043956043956044) internal successors, (186), 88 states have internal predecessors, (186), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:58:53,978 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 513 transitions. [2021-05-06 05:58:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-05-06 05:58:53,979 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:58:53,979 INFO L523 BasicCegarLoop]: trace histogram [84, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:58:54,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:54,193 INFO L428 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:58:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:58:54,193 INFO L82 PathProgramCache]: Analyzing trace with hash 986620600, now seen corresponding path program 83 times [2021-05-06 05:58:54,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:58:54,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588564659] [2021-05-06 05:58:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:58:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:57,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:58:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:58:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 0 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:57,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:58:57,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588564659] [2021-05-06 05:58:57,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588564659] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:57,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874365769] [2021-05-06 05:58:57,208 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:58:57,430 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2021-05-06 05:58:57,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:58:57,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 87 conjunts are in the unsatisfiable core [2021-05-06 05:58:57,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:58:57,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:58:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 0 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:58:57,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874365769] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:58:57,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:58:57,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 88] total 92 [2021-05-06 05:58:57,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574056618] [2021-05-06 05:58:57,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-05-06 05:58:57,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:58:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-05-06 05:58:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3753, Invalid=4619, Unknown=0, NotChecked=0, Total=8372 [2021-05-06 05:58:57,798 INFO L87 Difference]: Start difference. First operand 430 states and 513 transitions. Second operand has 92 states, 92 states have (on average 2.0434782608695654) internal successors, (188), 89 states have internal predecessors, (188), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:03,278 INFO L93 Difference]: Finished difference Result 446 states and 531 transitions. [2021-05-06 05:59:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-06 05:59:03,278 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 2.0434782608695654) internal successors, (188), 89 states have internal predecessors, (188), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2021-05-06 05:59:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:03,279 INFO L225 Difference]: With dead ends: 446 [2021-05-06 05:59:03,279 INFO L226 Difference]: Without dead ends: 442 [2021-05-06 05:59:03,281 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4491 ImplicationChecksByTransitivity, 7428.2ms TimeCoverageRelationStatistics Valid=11075, Invalid=20431, Unknown=0, NotChecked=0, Total=31506 [2021-05-06 05:59:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-05-06 05:59:03,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 435. [2021-05-06 05:59:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.197674418604651) internal successors, (515), 430 states have internal predecessors, (515), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 519 transitions. [2021-05-06 05:59:03,284 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 519 transitions. Word has length 183 [2021-05-06 05:59:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:03,284 INFO L480 AbstractCegarLoop]: Abstraction has 435 states and 519 transitions. [2021-05-06 05:59:03,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 92 states, 92 states have (on average 2.0434782608695654) internal successors, (188), 89 states have internal predecessors, (188), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 519 transitions. [2021-05-06 05:59:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-05-06 05:59:03,285 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:03,285 INFO L523 BasicCegarLoop]: trace histogram [85, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:03,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:03,502 INFO L428 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:03,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1139568396, now seen corresponding path program 84 times [2021-05-06 05:59:03,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:03,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848070267] [2021-05-06 05:59:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:06,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:06,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:06,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848070267] [2021-05-06 05:59:06,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848070267] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:06,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673209999] [2021-05-06 05:59:06,331 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:06,547 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 85 check-sat command(s) [2021-05-06 05:59:06,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:59:06,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 88 conjunts are in the unsatisfiable core [2021-05-06 05:59:06,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:06,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:06,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673209999] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:06,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:06,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 89] total 93 [2021-05-06 05:59:06,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992957406] [2021-05-06 05:59:06,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-05-06 05:59:06,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:06,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-05-06 05:59:06,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3840, Invalid=4716, Unknown=0, NotChecked=0, Total=8556 [2021-05-06 05:59:06,893 INFO L87 Difference]: Start difference. First operand 435 states and 519 transitions. Second operand has 93 states, 93 states have (on average 2.043010752688172) internal successors, (190), 90 states have internal predecessors, (190), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:12,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:12,539 INFO L93 Difference]: Finished difference Result 451 states and 537 transitions. [2021-05-06 05:59:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-05-06 05:59:12,539 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 2.043010752688172) internal successors, (190), 90 states have internal predecessors, (190), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2021-05-06 05:59:12,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:12,540 INFO L225 Difference]: With dead ends: 451 [2021-05-06 05:59:12,540 INFO L226 Difference]: Without dead ends: 447 [2021-05-06 05:59:12,542 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4587 ImplicationChecksByTransitivity, 7340.9ms TimeCoverageRelationStatistics Valid=11334, Invalid=20886, Unknown=0, NotChecked=0, Total=32220 [2021-05-06 05:59:12,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-05-06 05:59:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 440. [2021-05-06 05:59:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 435 states have (on average 1.1977011494252874) internal successors, (521), 435 states have internal predecessors, (521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 525 transitions. [2021-05-06 05:59:12,545 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 525 transitions. Word has length 185 [2021-05-06 05:59:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:12,545 INFO L480 AbstractCegarLoop]: Abstraction has 440 states and 525 transitions. [2021-05-06 05:59:12,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 93 states, 93 states have (on average 2.043010752688172) internal successors, (190), 90 states have internal predecessors, (190), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 525 transitions. [2021-05-06 05:59:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-05-06 05:59:12,546 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:12,546 INFO L523 BasicCegarLoop]: trace histogram [86, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:12,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-05-06 05:59:12,761 INFO L428 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:12,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:12,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2760656, now seen corresponding path program 85 times [2021-05-06 05:59:12,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:12,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940906837] [2021-05-06 05:59:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:15,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:15,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:15,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940906837] [2021-05-06 05:59:15,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940906837] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:15,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018306664] [2021-05-06 05:59:15,789 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:15,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 89 conjunts are in the unsatisfiable core [2021-05-06 05:59:15,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:15,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:15,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:16,247 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:16,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018306664] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:16,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:16,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 90] total 94 [2021-05-06 05:59:16,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677172717] [2021-05-06 05:59:16,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-06 05:59:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-06 05:59:16,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3928, Invalid=4814, Unknown=0, NotChecked=0, Total=8742 [2021-05-06 05:59:16,249 INFO L87 Difference]: Start difference. First operand 440 states and 525 transitions. Second operand has 94 states, 94 states have (on average 2.0425531914893615) internal successors, (192), 91 states have internal predecessors, (192), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:21,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:21,896 INFO L93 Difference]: Finished difference Result 456 states and 543 transitions. [2021-05-06 05:59:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-06 05:59:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 2.0425531914893615) internal successors, (192), 91 states have internal predecessors, (192), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2021-05-06 05:59:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:21,897 INFO L225 Difference]: With dead ends: 456 [2021-05-06 05:59:21,898 INFO L226 Difference]: Without dead ends: 452 [2021-05-06 05:59:21,899 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4684 ImplicationChecksByTransitivity, 7576.5ms TimeCoverageRelationStatistics Valid=11596, Invalid=21346, Unknown=0, NotChecked=0, Total=32942 [2021-05-06 05:59:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-05-06 05:59:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 445. [2021-05-06 05:59:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.1977272727272728) internal successors, (527), 440 states have internal predecessors, (527), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 531 transitions. [2021-05-06 05:59:21,902 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 531 transitions. Word has length 187 [2021-05-06 05:59:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:21,902 INFO L480 AbstractCegarLoop]: Abstraction has 445 states and 531 transitions. [2021-05-06 05:59:21,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 94 states, 94 states have (on average 2.0425531914893615) internal successors, (192), 91 states have internal predecessors, (192), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 531 transitions. [2021-05-06 05:59:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-05-06 05:59:21,903 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:21,903 INFO L523 BasicCegarLoop]: trace histogram [87, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:22,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:22,117 INFO L428 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:22,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1547784300, now seen corresponding path program 86 times [2021-05-06 05:59:22,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:22,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255979184] [2021-05-06 05:59:22,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:25,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7482 backedges. 0 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:25,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:25,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255979184] [2021-05-06 05:59:25,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255979184] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:25,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073175020] [2021-05-06 05:59:25,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:25,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:59:25,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:59:25,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 90 conjunts are in the unsatisfiable core [2021-05-06 05:59:25,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:25,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7482 backedges. 0 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:25,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073175020] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:25,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:25,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 91] total 95 [2021-05-06 05:59:25,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67977906] [2021-05-06 05:59:25,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-05-06 05:59:25,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:25,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-05-06 05:59:25,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4017, Invalid=4913, Unknown=0, NotChecked=0, Total=8930 [2021-05-06 05:59:25,660 INFO L87 Difference]: Start difference. First operand 445 states and 531 transitions. Second operand has 95 states, 95 states have (on average 2.042105263157895) internal successors, (194), 92 states have internal predecessors, (194), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:31,346 INFO L93 Difference]: Finished difference Result 461 states and 549 transitions. [2021-05-06 05:59:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-05-06 05:59:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.042105263157895) internal successors, (194), 92 states have internal predecessors, (194), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2021-05-06 05:59:31,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:31,348 INFO L225 Difference]: With dead ends: 461 [2021-05-06 05:59:31,348 INFO L226 Difference]: Without dead ends: 457 [2021-05-06 05:59:31,349 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4782 ImplicationChecksByTransitivity, 7679.0ms TimeCoverageRelationStatistics Valid=11861, Invalid=21811, Unknown=0, NotChecked=0, Total=33672 [2021-05-06 05:59:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-05-06 05:59:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 450. [2021-05-06 05:59:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.1977528089887641) internal successors, (533), 445 states have internal predecessors, (533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 537 transitions. [2021-05-06 05:59:31,352 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 537 transitions. Word has length 189 [2021-05-06 05:59:31,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:31,352 INFO L480 AbstractCegarLoop]: Abstraction has 450 states and 537 transitions. [2021-05-06 05:59:31,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 95 states, 95 states have (on average 2.042105263157895) internal successors, (194), 92 states have internal predecessors, (194), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 537 transitions. [2021-05-06 05:59:31,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-06 05:59:31,353 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:31,353 INFO L523 BasicCegarLoop]: trace histogram [88, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:31,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-05-06 05:59:31,569 INFO L428 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:31,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1267835304, now seen corresponding path program 87 times [2021-05-06 05:59:31,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:31,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935893701] [2021-05-06 05:59:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:34,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:34,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:34,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935893701] [2021-05-06 05:59:34,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935893701] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:34,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748203480] [2021-05-06 05:59:34,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:34,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 88 check-sat command(s) [2021-05-06 05:59:34,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:59:34,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 91 conjunts are in the unsatisfiable core [2021-05-06 05:59:34,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:34,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:34,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:35,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748203480] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:35,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:35,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 92] total 96 [2021-05-06 05:59:35,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668701556] [2021-05-06 05:59:35,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2021-05-06 05:59:35,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:35,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-05-06 05:59:35,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4107, Invalid=5013, Unknown=0, NotChecked=0, Total=9120 [2021-05-06 05:59:35,371 INFO L87 Difference]: Start difference. First operand 450 states and 537 transitions. Second operand has 96 states, 96 states have (on average 2.0416666666666665) internal successors, (196), 93 states have internal predecessors, (196), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:41,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:41,666 INFO L93 Difference]: Finished difference Result 466 states and 555 transitions. [2021-05-06 05:59:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-06 05:59:41,667 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.0416666666666665) internal successors, (196), 93 states have internal predecessors, (196), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2021-05-06 05:59:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:41,668 INFO L225 Difference]: With dead ends: 466 [2021-05-06 05:59:41,668 INFO L226 Difference]: Without dead ends: 462 [2021-05-06 05:59:41,669 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4881 ImplicationChecksByTransitivity, 8147.2ms TimeCoverageRelationStatistics Valid=12129, Invalid=22281, Unknown=0, NotChecked=0, Total=34410 [2021-05-06 05:59:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-05-06 05:59:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 455. [2021-05-06 05:59:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 450 states have (on average 1.1977777777777778) internal successors, (539), 450 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2021-05-06 05:59:41,673 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 191 [2021-05-06 05:59:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:41,673 INFO L480 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2021-05-06 05:59:41,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 96 states, 96 states have (on average 2.0416666666666665) internal successors, (196), 93 states have internal predecessors, (196), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2021-05-06 05:59:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-05-06 05:59:41,674 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:41,674 INFO L523 BasicCegarLoop]: trace histogram [89, 88, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:41,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-05-06 05:59:41,890 INFO L428 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1475177500, now seen corresponding path program 88 times [2021-05-06 05:59:41,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:41,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43413928] [2021-05-06 05:59:41,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:45,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7832 backedges. 0 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:45,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:45,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43413928] [2021-05-06 05:59:45,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43413928] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:45,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095093879] [2021-05-06 05:59:45,091 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:45,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:59:45,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:59:45,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 92 conjunts are in the unsatisfiable core [2021-05-06 05:59:45,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:45,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7832 backedges. 0 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:45,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095093879] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:45,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:45,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 93] total 97 [2021-05-06 05:59:45,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091860183] [2021-05-06 05:59:45,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-05-06 05:59:45,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:45,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-05-06 05:59:45,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4198, Invalid=5114, Unknown=0, NotChecked=0, Total=9312 [2021-05-06 05:59:45,572 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand has 97 states, 97 states have (on average 2.0412371134020617) internal successors, (198), 94 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:59:51,706 INFO L93 Difference]: Finished difference Result 471 states and 561 transitions. [2021-05-06 05:59:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-05-06 05:59:51,707 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 2.0412371134020617) internal successors, (198), 94 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2021-05-06 05:59:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:59:51,708 INFO L225 Difference]: With dead ends: 471 [2021-05-06 05:59:51,708 INFO L226 Difference]: Without dead ends: 467 [2021-05-06 05:59:51,709 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4981 ImplicationChecksByTransitivity, 8137.5ms TimeCoverageRelationStatistics Valid=12400, Invalid=22756, Unknown=0, NotChecked=0, Total=35156 [2021-05-06 05:59:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-05-06 05:59:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 460. [2021-05-06 05:59:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.1978021978021978) internal successors, (545), 455 states have internal predecessors, (545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 549 transitions. [2021-05-06 05:59:51,712 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 549 transitions. Word has length 193 [2021-05-06 05:59:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:59:51,712 INFO L480 AbstractCegarLoop]: Abstraction has 460 states and 549 transitions. [2021-05-06 05:59:51,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 97 states, 97 states have (on average 2.0412371134020617) internal successors, (198), 94 states have internal predecessors, (198), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 05:59:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 549 transitions. [2021-05-06 05:59:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-05-06 05:59:51,713 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:59:51,713 INFO L523 BasicCegarLoop]: trace histogram [90, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:59:51,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:51,929 INFO L428 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:59:51,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:59:51,929 INFO L82 PathProgramCache]: Analyzing trace with hash -400562400, now seen corresponding path program 89 times [2021-05-06 05:59:51,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:59:51,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438781891] [2021-05-06 05:59:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:59:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:55,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:59:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:59:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8010 backedges. 0 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:55,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:59:55,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438781891] [2021-05-06 05:59:55,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438781891] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:55,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622189269] [2021-05-06 05:59:55,340 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:59:55,534 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2021-05-06 05:59:55,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:59:55,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 93 conjunts are in the unsatisfiable core [2021-05-06 05:59:55,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:59:55,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:59:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 8010 backedges. 0 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:59:55,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622189269] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:59:55,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:59:55,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 94] total 98 [2021-05-06 05:59:55,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786078391] [2021-05-06 05:59:55,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-05-06 05:59:55,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:59:55,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-05-06 05:59:55,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=5216, Unknown=0, NotChecked=0, Total=9506 [2021-05-06 05:59:55,895 INFO L87 Difference]: Start difference. First operand 460 states and 549 transitions. Second operand has 98 states, 98 states have (on average 2.0408163265306123) internal successors, (200), 95 states have internal predecessors, (200), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:02,043 INFO L93 Difference]: Finished difference Result 476 states and 567 transitions. [2021-05-06 06:00:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-05-06 06:00:02,044 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.0408163265306123) internal successors, (200), 95 states have internal predecessors, (200), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2021-05-06 06:00:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:02,045 INFO L225 Difference]: With dead ends: 476 [2021-05-06 06:00:02,045 INFO L226 Difference]: Without dead ends: 472 [2021-05-06 06:00:02,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5082 ImplicationChecksByTransitivity, 8306.2ms TimeCoverageRelationStatistics Valid=12674, Invalid=23236, Unknown=0, NotChecked=0, Total=35910 [2021-05-06 06:00:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-05-06 06:00:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 465. [2021-05-06 06:00:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.1978260869565218) internal successors, (551), 460 states have internal predecessors, (551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 555 transitions. [2021-05-06 06:00:02,049 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 555 transitions. Word has length 195 [2021-05-06 06:00:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:02,049 INFO L480 AbstractCegarLoop]: Abstraction has 465 states and 555 transitions. [2021-05-06 06:00:02,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 2.0408163265306123) internal successors, (200), 95 states have internal predecessors, (200), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 555 transitions. [2021-05-06 06:00:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-05-06 06:00:02,050 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:02,051 INFO L523 BasicCegarLoop]: trace histogram [91, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:02,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:02,270 INFO L428 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:02,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1512397660, now seen corresponding path program 90 times [2021-05-06 06:00:02,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:02,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165994726] [2021-05-06 06:00:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:05,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:00:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 0 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:05,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:00:05,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165994726] [2021-05-06 06:00:05,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165994726] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:05,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679184929] [2021-05-06 06:00:05,889 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:06,157 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 91 check-sat command(s) [2021-05-06 06:00:06,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:00:06,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 94 conjunts are in the unsatisfiable core [2021-05-06 06:00:06,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:00:06,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 0 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:06,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679184929] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:06,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:00:06,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 95] total 99 [2021-05-06 06:00:06,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135200361] [2021-05-06 06:00:06,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 99 states [2021-05-06 06:00:06,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:00:06,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-05-06 06:00:06,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4383, Invalid=5319, Unknown=0, NotChecked=0, Total=9702 [2021-05-06 06:00:06,594 INFO L87 Difference]: Start difference. First operand 465 states and 555 transitions. Second operand has 99 states, 99 states have (on average 2.04040404040404) internal successors, (202), 96 states have internal predecessors, (202), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:13,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:13,442 INFO L93 Difference]: Finished difference Result 481 states and 573 transitions. [2021-05-06 06:00:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-05-06 06:00:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 2.04040404040404) internal successors, (202), 96 states have internal predecessors, (202), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2021-05-06 06:00:13,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:13,444 INFO L225 Difference]: With dead ends: 481 [2021-05-06 06:00:13,444 INFO L226 Difference]: Without dead ends: 477 [2021-05-06 06:00:13,445 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5184 ImplicationChecksByTransitivity, 9026.2ms TimeCoverageRelationStatistics Valid=12951, Invalid=23721, Unknown=0, NotChecked=0, Total=36672 [2021-05-06 06:00:13,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-05-06 06:00:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 470. [2021-05-06 06:00:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 465 states have (on average 1.1978494623655913) internal successors, (557), 465 states have internal predecessors, (557), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 561 transitions. [2021-05-06 06:00:13,449 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 561 transitions. Word has length 197 [2021-05-06 06:00:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:13,449 INFO L480 AbstractCegarLoop]: Abstraction has 470 states and 561 transitions. [2021-05-06 06:00:13,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 99 states, 99 states have (on average 2.04040404040404) internal successors, (202), 96 states have internal predecessors, (202), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 561 transitions. [2021-05-06 06:00:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-05-06 06:00:13,450 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:13,450 INFO L523 BasicCegarLoop]: trace histogram [92, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:13,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:13,668 INFO L428 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:13,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1621012632, now seen corresponding path program 91 times [2021-05-06 06:00:13,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:13,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153945681] [2021-05-06 06:00:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:17,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:00:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:17,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:00:17,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153945681] [2021-05-06 06:00:17,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153945681] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:17,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468034711] [2021-05-06 06:00:17,184 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:17,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 95 conjunts are in the unsatisfiable core [2021-05-06 06:00:17,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:00:17,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:17,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468034711] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:17,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:00:17,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 96] total 100 [2021-05-06 06:00:17,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383509815] [2021-05-06 06:00:17,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states [2021-05-06 06:00:17,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:00:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-05-06 06:00:17,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4477, Invalid=5423, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 06:00:17,789 INFO L87 Difference]: Start difference. First operand 470 states and 561 transitions. Second operand has 100 states, 100 states have (on average 2.04) internal successors, (204), 97 states have internal predecessors, (204), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:24,882 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2021-05-06 06:00:24,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-05-06 06:00:24,882 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.04) internal successors, (204), 97 states have internal predecessors, (204), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2021-05-06 06:00:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:24,884 INFO L225 Difference]: With dead ends: 486 [2021-05-06 06:00:24,884 INFO L226 Difference]: Without dead ends: 482 [2021-05-06 06:00:24,886 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5287 ImplicationChecksByTransitivity, 9042.9ms TimeCoverageRelationStatistics Valid=13231, Invalid=24211, Unknown=0, NotChecked=0, Total=37442 [2021-05-06 06:00:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-05-06 06:00:24,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 475. [2021-05-06 06:00:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.1978723404255318) internal successors, (563), 470 states have internal predecessors, (563), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:24,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 567 transitions. [2021-05-06 06:00:24,890 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 567 transitions. Word has length 199 [2021-05-06 06:00:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:24,890 INFO L480 AbstractCegarLoop]: Abstraction has 475 states and 567 transitions. [2021-05-06 06:00:24,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 100 states, 100 states have (on average 2.04) internal successors, (204), 97 states have internal predecessors, (204), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 567 transitions. [2021-05-06 06:00:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-05-06 06:00:24,892 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:24,892 INFO L523 BasicCegarLoop]: trace histogram [93, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:25,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2021-05-06 06:00:25,094 INFO L428 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:25,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1374181676, now seen corresponding path program 92 times [2021-05-06 06:00:25,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:25,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23622571] [2021-05-06 06:00:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:00:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8556 backedges. 0 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:28,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:00:28,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23622571] [2021-05-06 06:00:28,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23622571] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:28,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216301335] [2021-05-06 06:00:28,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:28,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:00:28,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:00:28,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 96 conjunts are in the unsatisfiable core [2021-05-06 06:00:28,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:00:28,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8556 backedges. 0 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:28,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216301335] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:28,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:00:28,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 97] total 101 [2021-05-06 06:00:28,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931240812] [2021-05-06 06:00:28,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states [2021-05-06 06:00:28,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:00:28,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-05-06 06:00:28,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4572, Invalid=5528, Unknown=0, NotChecked=0, Total=10100 [2021-05-06 06:00:28,985 INFO L87 Difference]: Start difference. First operand 475 states and 567 transitions. Second operand has 101 states, 101 states have (on average 2.0396039603960396) internal successors, (206), 98 states have internal predecessors, (206), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:35,579 INFO L93 Difference]: Finished difference Result 491 states and 585 transitions. [2021-05-06 06:00:35,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-05-06 06:00:35,579 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 2.0396039603960396) internal successors, (206), 98 states have internal predecessors, (206), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2021-05-06 06:00:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:35,581 INFO L225 Difference]: With dead ends: 491 [2021-05-06 06:00:35,581 INFO L226 Difference]: Without dead ends: 487 [2021-05-06 06:00:35,583 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5391 ImplicationChecksByTransitivity, 8621.8ms TimeCoverageRelationStatistics Valid=13514, Invalid=24706, Unknown=0, NotChecked=0, Total=38220 [2021-05-06 06:00:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-05-06 06:00:35,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 480. [2021-05-06 06:00:35,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.1978947368421053) internal successors, (569), 475 states have internal predecessors, (569), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 573 transitions. [2021-05-06 06:00:35,588 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 573 transitions. Word has length 201 [2021-05-06 06:00:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:35,588 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 573 transitions. [2021-05-06 06:00:35,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 101 states, 101 states have (on average 2.0396039603960396) internal successors, (206), 98 states have internal predecessors, (206), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:35,588 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 573 transitions. [2021-05-06 06:00:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-05-06 06:00:35,589 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:35,589 INFO L523 BasicCegarLoop]: trace histogram [94, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:35,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:35,802 INFO L428 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:35,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2127823344, now seen corresponding path program 93 times [2021-05-06 06:00:35,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:35,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916571132] [2021-05-06 06:00:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:39,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:00:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8742 backedges. 0 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:39,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:00:39,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916571132] [2021-05-06 06:00:39,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916571132] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:39,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989217384] [2021-05-06 06:00:39,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:39,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2021-05-06 06:00:39,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:00:39,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 97 conjunts are in the unsatisfiable core [2021-05-06 06:00:39,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:00:39,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:39,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8742 backedges. 0 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:40,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989217384] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:40,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:00:40,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 98] total 102 [2021-05-06 06:00:40,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569706225] [2021-05-06 06:00:40,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-05-06 06:00:40,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:00:40,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-05-06 06:00:40,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4668, Invalid=5634, Unknown=0, NotChecked=0, Total=10302 [2021-05-06 06:00:40,152 INFO L87 Difference]: Start difference. First operand 480 states and 573 transitions. Second operand has 102 states, 102 states have (on average 2.0392156862745097) internal successors, (208), 99 states have internal predecessors, (208), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:47,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:47,099 INFO L93 Difference]: Finished difference Result 496 states and 591 transitions. [2021-05-06 06:00:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-05-06 06:00:47,099 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.0392156862745097) internal successors, (208), 99 states have internal predecessors, (208), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2021-05-06 06:00:47,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:47,101 INFO L225 Difference]: With dead ends: 496 [2021-05-06 06:00:47,101 INFO L226 Difference]: Without dead ends: 492 [2021-05-06 06:00:47,103 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 9141.7ms TimeCoverageRelationStatistics Valid=13800, Invalid=25206, Unknown=0, NotChecked=0, Total=39006 [2021-05-06 06:00:47,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-05-06 06:00:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 485. [2021-05-06 06:00:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 480 states have (on average 1.1979166666666667) internal successors, (575), 480 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 579 transitions. [2021-05-06 06:00:47,106 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 579 transitions. Word has length 203 [2021-05-06 06:00:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:47,106 INFO L480 AbstractCegarLoop]: Abstraction has 485 states and 579 transitions. [2021-05-06 06:00:47,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 2.0392156862745097) internal successors, (208), 99 states have internal predecessors, (208), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 579 transitions. [2021-05-06 06:00:47,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-05-06 06:00:47,107 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:47,108 INFO L523 BasicCegarLoop]: trace histogram [95, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:47,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-05-06 06:00:47,321 INFO L428 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:47,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:47,321 INFO L82 PathProgramCache]: Analyzing trace with hash -527993268, now seen corresponding path program 94 times [2021-05-06 06:00:47,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:47,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478612043] [2021-05-06 06:00:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:50,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:00:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:00:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:51,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:00:51,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478612043] [2021-05-06 06:00:51,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478612043] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:51,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507348412] [2021-05-06 06:00:51,000 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:51,131 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:00:51,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:00:51,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 98 conjunts are in the unsatisfiable core [2021-05-06 06:00:51,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:00:51,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:00:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:00:51,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507348412] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:00:51,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:00:51,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 99] total 103 [2021-05-06 06:00:51,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762928795] [2021-05-06 06:00:51,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states [2021-05-06 06:00:51,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:00:51,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-05-06 06:00:51,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4765, Invalid=5741, Unknown=0, NotChecked=0, Total=10506 [2021-05-06 06:00:51,520 INFO L87 Difference]: Start difference. First operand 485 states and 579 transitions. Second operand has 103 states, 103 states have (on average 2.0388349514563107) internal successors, (210), 100 states have internal predecessors, (210), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:00:58,250 INFO L93 Difference]: Finished difference Result 501 states and 597 transitions. [2021-05-06 06:00:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-05-06 06:00:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.0388349514563107) internal successors, (210), 100 states have internal predecessors, (210), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2021-05-06 06:00:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:00:58,253 INFO L225 Difference]: With dead ends: 501 [2021-05-06 06:00:58,253 INFO L226 Difference]: Without dead ends: 497 [2021-05-06 06:00:58,254 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5602 ImplicationChecksByTransitivity, 8990.2ms TimeCoverageRelationStatistics Valid=14089, Invalid=25711, Unknown=0, NotChecked=0, Total=39800 [2021-05-06 06:00:58,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-05-06 06:00:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 490. [2021-05-06 06:00:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.1979381443298969) internal successors, (581), 485 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 585 transitions. [2021-05-06 06:00:58,258 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 585 transitions. Word has length 205 [2021-05-06 06:00:58,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:00:58,258 INFO L480 AbstractCegarLoop]: Abstraction has 490 states and 585 transitions. [2021-05-06 06:00:58,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 103 states, 103 states have (on average 2.0388349514563107) internal successors, (210), 100 states have internal predecessors, (210), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:00:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 585 transitions. [2021-05-06 06:00:58,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-05-06 06:00:58,259 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:00:58,259 INFO L523 BasicCegarLoop]: trace histogram [96, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:00:58,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:00:58,477 INFO L428 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:00:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:00:58,477 INFO L82 PathProgramCache]: Analyzing trace with hash -689582200, now seen corresponding path program 95 times [2021-05-06 06:00:58,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:00:58,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738036537] [2021-05-06 06:00:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:00:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:02,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:01:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9120 backedges. 0 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:02,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:01:02,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738036537] [2021-05-06 06:01:02,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738036537] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:02,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993967024] [2021-05-06 06:01:02,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:02,278 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 96 check-sat command(s) [2021-05-06 06:01:02,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:01:02,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 99 conjunts are in the unsatisfiable core [2021-05-06 06:01:02,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:01:02,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 9120 backedges. 0 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:02,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993967024] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:02,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:01:02,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 100] total 104 [2021-05-06 06:01:02,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841639603] [2021-05-06 06:01:02,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-05-06 06:01:02,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:01:02,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-05-06 06:01:02,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4863, Invalid=5849, Unknown=0, NotChecked=0, Total=10712 [2021-05-06 06:01:02,676 INFO L87 Difference]: Start difference. First operand 490 states and 585 transitions. Second operand has 104 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 101 states have internal predecessors, (212), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:01:09,651 INFO L93 Difference]: Finished difference Result 506 states and 603 transitions. [2021-05-06 06:01:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-06 06:01:09,651 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 101 states have internal predecessors, (212), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2021-05-06 06:01:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:01:09,653 INFO L225 Difference]: With dead ends: 506 [2021-05-06 06:01:09,653 INFO L226 Difference]: Without dead ends: 502 [2021-05-06 06:01:09,655 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5709 ImplicationChecksByTransitivity, 9152.2ms TimeCoverageRelationStatistics Valid=14381, Invalid=26221, Unknown=0, NotChecked=0, Total=40602 [2021-05-06 06:01:09,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-05-06 06:01:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 495. [2021-05-06 06:01:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.1979591836734693) internal successors, (587), 490 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 591 transitions. [2021-05-06 06:01:09,660 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 591 transitions. Word has length 207 [2021-05-06 06:01:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:01:09,660 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 591 transitions. [2021-05-06 06:01:09,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 2.0384615384615383) internal successors, (212), 101 states have internal predecessors, (212), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 591 transitions. [2021-05-06 06:01:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-05-06 06:01:09,661 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:01:09,661 INFO L523 BasicCegarLoop]: trace histogram [97, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:01:09,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:09,868 INFO L428 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:01:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:01:09,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1357723196, now seen corresponding path program 96 times [2021-05-06 06:01:09,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:01:09,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275150301] [2021-05-06 06:01:09,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:01:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:01:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9312 backedges. 0 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:13,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:01:13,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275150301] [2021-05-06 06:01:13,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275150301] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:13,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100787458] [2021-05-06 06:01:13,582 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:13,849 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2021-05-06 06:01:13,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:01:13,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 100 conjunts are in the unsatisfiable core [2021-05-06 06:01:13,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:01:13,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:13,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:14,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9312 backedges. 0 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:14,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100787458] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:14,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:01:14,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 101] total 105 [2021-05-06 06:01:14,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242903425] [2021-05-06 06:01:14,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states [2021-05-06 06:01:14,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:01:14,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-05-06 06:01:14,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4962, Invalid=5958, Unknown=0, NotChecked=0, Total=10920 [2021-05-06 06:01:14,242 INFO L87 Difference]: Start difference. First operand 495 states and 591 transitions. Second operand has 105 states, 105 states have (on average 2.038095238095238) internal successors, (214), 102 states have internal predecessors, (214), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:01:21,369 INFO L93 Difference]: Finished difference Result 511 states and 609 transitions. [2021-05-06 06:01:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-05-06 06:01:21,369 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 2.038095238095238) internal successors, (214), 102 states have internal predecessors, (214), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2021-05-06 06:01:21,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:01:21,370 INFO L225 Difference]: With dead ends: 511 [2021-05-06 06:01:21,370 INFO L226 Difference]: Without dead ends: 507 [2021-05-06 06:01:21,372 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5817 ImplicationChecksByTransitivity, 9327.4ms TimeCoverageRelationStatistics Valid=14676, Invalid=26736, Unknown=0, NotChecked=0, Total=41412 [2021-05-06 06:01:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-05-06 06:01:21,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 500. [2021-05-06 06:01:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.197979797979798) internal successors, (593), 495 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 597 transitions. [2021-05-06 06:01:21,375 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 597 transitions. Word has length 209 [2021-05-06 06:01:21,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:01:21,375 INFO L480 AbstractCegarLoop]: Abstraction has 500 states and 597 transitions. [2021-05-06 06:01:21,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 105 states, 105 states have (on average 2.038095238095238) internal successors, (214), 102 states have internal predecessors, (214), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 597 transitions. [2021-05-06 06:01:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-05-06 06:01:21,376 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:01:21,376 INFO L523 BasicCegarLoop]: trace histogram [98, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:01:21,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-05-06 06:01:21,593 INFO L428 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:01:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:01:21,593 INFO L82 PathProgramCache]: Analyzing trace with hash 803874048, now seen corresponding path program 97 times [2021-05-06 06:01:21,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:01:21,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452115123] [2021-05-06 06:01:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:01:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:01:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:25,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:01:25,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452115123] [2021-05-06 06:01:25,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452115123] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:25,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961802775] [2021-05-06 06:01:25,530 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:25,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 101 conjunts are in the unsatisfiable core [2021-05-06 06:01:25,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:01:25,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:25,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:26,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:26,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961802775] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:26,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:01:26,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 102] total 106 [2021-05-06 06:01:26,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875235174] [2021-05-06 06:01:26,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-05-06 06:01:26,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:01:26,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-05-06 06:01:26,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5062, Invalid=6068, Unknown=0, NotChecked=0, Total=11130 [2021-05-06 06:01:26,048 INFO L87 Difference]: Start difference. First operand 500 states and 597 transitions. Second operand has 106 states, 106 states have (on average 2.0377358490566038) internal successors, (216), 103 states have internal predecessors, (216), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:01:33,347 INFO L93 Difference]: Finished difference Result 516 states and 615 transitions. [2021-05-06 06:01:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-06 06:01:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 2.0377358490566038) internal successors, (216), 103 states have internal predecessors, (216), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2021-05-06 06:01:33,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:01:33,349 INFO L225 Difference]: With dead ends: 516 [2021-05-06 06:01:33,349 INFO L226 Difference]: Without dead ends: 512 [2021-05-06 06:01:33,350 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5926 ImplicationChecksByTransitivity, 9702.2ms TimeCoverageRelationStatistics Valid=14974, Invalid=27256, Unknown=0, NotChecked=0, Total=42230 [2021-05-06 06:01:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-05-06 06:01:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 505. [2021-05-06 06:01:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.198) internal successors, (599), 500 states have internal predecessors, (599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 603 transitions. [2021-05-06 06:01:33,353 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 603 transitions. Word has length 211 [2021-05-06 06:01:33,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:01:33,354 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 603 transitions. [2021-05-06 06:01:33,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 2.0377358490566038) internal successors, (216), 103 states have internal predecessors, (216), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 603 transitions. [2021-05-06 06:01:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-05-06 06:01:33,355 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:01:33,355 INFO L523 BasicCegarLoop]: trace histogram [99, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:01:33,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:33,555 INFO L428 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:01:33,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:01:33,555 INFO L82 PathProgramCache]: Analyzing trace with hash -665345732, now seen corresponding path program 98 times [2021-05-06 06:01:33,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:01:33,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857815246] [2021-05-06 06:01:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:01:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:37,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:01:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:37,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:01:37,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857815246] [2021-05-06 06:01:37,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857815246] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:37,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006722845] [2021-05-06 06:01:37,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:37,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:01:37,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:01:37,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 102 conjunts are in the unsatisfiable core [2021-05-06 06:01:37,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:01:37,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:37,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006722845] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:37,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:01:37,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 103] total 107 [2021-05-06 06:01:37,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382817100] [2021-05-06 06:01:37,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states [2021-05-06 06:01:37,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:01:37,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-05-06 06:01:37,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5163, Invalid=6179, Unknown=0, NotChecked=0, Total=11342 [2021-05-06 06:01:37,991 INFO L87 Difference]: Start difference. First operand 505 states and 603 transitions. Second operand has 107 states, 107 states have (on average 2.0373831775700935) internal successors, (218), 104 states have internal predecessors, (218), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:01:45,113 INFO L93 Difference]: Finished difference Result 521 states and 621 transitions. [2021-05-06 06:01:45,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-05-06 06:01:45,113 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 2.0373831775700935) internal successors, (218), 104 states have internal predecessors, (218), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2021-05-06 06:01:45,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:01:45,121 INFO L225 Difference]: With dead ends: 521 [2021-05-06 06:01:45,121 INFO L226 Difference]: Without dead ends: 517 [2021-05-06 06:01:45,122 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6036 ImplicationChecksByTransitivity, 9594.0ms TimeCoverageRelationStatistics Valid=15275, Invalid=27781, Unknown=0, NotChecked=0, Total=43056 [2021-05-06 06:01:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-05-06 06:01:45,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 510. [2021-05-06 06:01:45,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.198019801980198) internal successors, (605), 505 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 609 transitions. [2021-05-06 06:01:45,129 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 609 transitions. Word has length 213 [2021-05-06 06:01:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:01:45,129 INFO L480 AbstractCegarLoop]: Abstraction has 510 states and 609 transitions. [2021-05-06 06:01:45,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 107 states, 107 states have (on average 2.0373831775700935) internal successors, (218), 104 states have internal predecessors, (218), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 609 transitions. [2021-05-06 06:01:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-06 06:01:45,131 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:01:45,131 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:01:45,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:45,345 INFO L428 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:01:45,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:01:45,345 INFO L82 PathProgramCache]: Analyzing trace with hash 458686072, now seen corresponding path program 99 times [2021-05-06 06:01:45,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:01:45,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540418140] [2021-05-06 06:01:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:01:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:49,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:01:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:01:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:49,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:01:49,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540418140] [2021-05-06 06:01:49,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540418140] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:49,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517097588] [2021-05-06 06:01:49,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:01:49,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-06 06:01:49,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:01:49,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 103 conjunts are in the unsatisfiable core [2021-05-06 06:01:49,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:01:49,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:01:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:01:49,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517097588] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:01:49,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:01:49,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104] total 108 [2021-05-06 06:01:49,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177179276] [2021-05-06 06:01:49,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-05-06 06:01:49,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:01:49,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-05-06 06:01:49,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5265, Invalid=6291, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 06:01:49,985 INFO L87 Difference]: Start difference. First operand 510 states and 609 transitions. Second operand has 108 states, 108 states have (on average 2.037037037037037) internal successors, (220), 105 states have internal predecessors, (220), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:57,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:01:57,507 INFO L93 Difference]: Finished difference Result 524 states and 625 transitions. [2021-05-06 06:01:57,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-05-06 06:01:57,507 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 2.037037037037037) internal successors, (220), 105 states have internal predecessors, (220), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2021-05-06 06:01:57,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:01:57,509 INFO L225 Difference]: With dead ends: 524 [2021-05-06 06:01:57,509 INFO L226 Difference]: Without dead ends: 520 [2021-05-06 06:01:57,510 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6147 ImplicationChecksByTransitivity, 9873.5ms TimeCoverageRelationStatistics Valid=15579, Invalid=28311, Unknown=0, NotChecked=0, Total=43890 [2021-05-06 06:01:57,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-05-06 06:01:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 515. [2021-05-06 06:01:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 510 states have (on average 1.1980392156862745) internal successors, (611), 510 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 615 transitions. [2021-05-06 06:01:57,524 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 615 transitions. Word has length 215 [2021-05-06 06:01:57,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:01:57,524 INFO L480 AbstractCegarLoop]: Abstraction has 515 states and 615 transitions. [2021-05-06 06:01:57,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 2.037037037037037) internal successors, (220), 105 states have internal predecessors, (220), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:01:57,524 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 615 transitions. [2021-05-06 06:01:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-05-06 06:01:57,525 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:01:57,525 INFO L523 BasicCegarLoop]: trace histogram [101, 100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:01:57,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-05-06 06:01:57,741 INFO L428 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:01:57,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:01:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1678508876, now seen corresponding path program 100 times [2021-05-06 06:01:57,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:01:57,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875551810] [2021-05-06 06:01:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:01:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:01,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10100 backedges. 0 proven. 10100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:01,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:01,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875551810] [2021-05-06 06:02:01,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875551810] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:01,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295054731] [2021-05-06 06:02:01,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:01,979 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:02:01,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:02:01,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 102 conjunts are in the unsatisfiable core [2021-05-06 06:02:01,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:02,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:02,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:03,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:04,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:05,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:06,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:07,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:08,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:09,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10100 backedges. 10100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:10,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295054731] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:02:10,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-05-06 06:02:10,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [106] total 207 [2021-05-06 06:02:10,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964567176] [2021-05-06 06:02:10,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states [2021-05-06 06:02:10,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:10,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-05-06 06:02:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10511, Invalid=32131, Unknown=0, NotChecked=0, Total=42642 [2021-05-06 06:02:10,572 INFO L87 Difference]: Start difference. First operand 515 states and 615 transitions. Second operand has 103 states, 103 states have (on average 2.0679611650485437) internal successors, (213), 103 states have internal predecessors, (213), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:11,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:11,126 INFO L93 Difference]: Finished difference Result 10810 states and 11008 transitions. [2021-05-06 06:02:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-06 06:02:11,126 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.0679611650485437) internal successors, (213), 103 states have internal predecessors, (213), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2021-05-06 06:02:11,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:11,139 INFO L225 Difference]: With dead ends: 10810 [2021-05-06 06:02:11,139 INFO L226 Difference]: Without dead ends: 10606 [2021-05-06 06:02:11,141 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10400 ImplicationChecksByTransitivity, 12126.6ms TimeCoverageRelationStatistics Valid=10511, Invalid=32131, Unknown=0, NotChecked=0, Total=42642 [2021-05-06 06:02:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2021-05-06 06:02:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 10410. [2021-05-06 06:02:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10410 states, 10405 states have (on average 1.0189332051898126) internal successors, (10602), 10405 states have internal predecessors, (10602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:11,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10410 states to 10410 states and 10606 transitions. [2021-05-06 06:02:11,319 INFO L78 Accepts]: Start accepts. Automaton has 10410 states and 10606 transitions. Word has length 217 [2021-05-06 06:02:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:11,319 INFO L480 AbstractCegarLoop]: Abstraction has 10410 states and 10606 transitions. [2021-05-06 06:02:11,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 103 states, 103 states have (on average 2.0679611650485437) internal successors, (213), 103 states have internal predecessors, (213), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 10410 states and 10606 transitions. [2021-05-06 06:02:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-05-06 06:02:11,328 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:11,328 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:11,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-05-06 06:02:11,546 INFO L428 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:11,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:11,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1678024540, now seen corresponding path program 1 times [2021-05-06 06:02:11,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:11,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280909654] [2021-05-06 06:02:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9902 backedges. 0 proven. 9902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:15,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:15,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280909654] [2021-05-06 06:02:15,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280909654] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:15,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839549517] [2021-05-06 06:02:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:15,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 104 conjunts are in the unsatisfiable core [2021-05-06 06:02:15,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:15,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:15,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9902 backedges. 0 proven. 9902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:16,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839549517] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:16,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:02:16,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 105] total 109 [2021-05-06 06:02:16,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971133658] [2021-05-06 06:02:16,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states [2021-05-06 06:02:16,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2021-05-06 06:02:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5368, Invalid=6404, Unknown=0, NotChecked=0, Total=11772 [2021-05-06 06:02:16,318 INFO L87 Difference]: Start difference. First operand 10410 states and 10606 transitions. Second operand has 109 states, 109 states have (on average 2.0091743119266057) internal successors, (219), 106 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:23,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:23,895 INFO L93 Difference]: Finished difference Result 10616 states and 10910 transitions. [2021-05-06 06:02:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-05-06 06:02:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 109 states have (on average 2.0091743119266057) internal successors, (219), 106 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2021-05-06 06:02:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:23,906 INFO L225 Difference]: With dead ends: 10616 [2021-05-06 06:02:23,906 INFO L226 Difference]: Without dead ends: 10411 [2021-05-06 06:02:23,908 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6259 ImplicationChecksByTransitivity, 10193.5ms TimeCoverageRelationStatistics Valid=15886, Invalid=28846, Unknown=0, NotChecked=0, Total=44732 [2021-05-06 06:02:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10411 states. [2021-05-06 06:02:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10411 to 10405. [2021-05-06 06:02:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10405 states, 10400 states have (on average 1.01875) internal successors, (10595), 10400 states have internal predecessors, (10595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10405 states to 10405 states and 10599 transitions. [2021-05-06 06:02:23,974 INFO L78 Accepts]: Start accepts. Automaton has 10405 states and 10599 transitions. Word has length 217 [2021-05-06 06:02:23,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:23,974 INFO L480 AbstractCegarLoop]: Abstraction has 10405 states and 10599 transitions. [2021-05-06 06:02:23,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 109 states, 109 states have (on average 2.0091743119266057) internal successors, (219), 106 states have internal predecessors, (219), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 10405 states and 10599 transitions. [2021-05-06 06:02:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-05-06 06:02:24,061 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:24,061 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:24,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-05-06 06:02:24,279 INFO L428 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:24,279 INFO L82 PathProgramCache]: Analyzing trace with hash 936220480, now seen corresponding path program 2 times [2021-05-06 06:02:24,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:24,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817129517] [2021-05-06 06:02:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9906 backedges. 0 proven. 9906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:28,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:28,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817129517] [2021-05-06 06:02:28,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817129517] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:28,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738884154] [2021-05-06 06:02:28,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:28,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:02:28,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:02:28,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 105 conjunts are in the unsatisfiable core [2021-05-06 06:02:28,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:28,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:28,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9906 backedges. 0 proven. 9906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:29,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738884154] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:29,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:02:29,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 106] total 110 [2021-05-06 06:02:29,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135448732] [2021-05-06 06:02:29,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 110 states [2021-05-06 06:02:29,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:29,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2021-05-06 06:02:29,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5472, Invalid=6518, Unknown=0, NotChecked=0, Total=11990 [2021-05-06 06:02:29,034 INFO L87 Difference]: Start difference. First operand 10405 states and 10599 transitions. Second operand has 110 states, 110 states have (on average 2.0090909090909093) internal successors, (221), 107 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:36,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:36,861 INFO L93 Difference]: Finished difference Result 10612 states and 10904 transitions. [2021-05-06 06:02:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-05-06 06:02:36,862 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 2.0090909090909093) internal successors, (221), 107 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2021-05-06 06:02:36,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:36,870 INFO L225 Difference]: With dead ends: 10612 [2021-05-06 06:02:36,871 INFO L226 Difference]: Without dead ends: 10407 [2021-05-06 06:02:36,873 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6372 ImplicationChecksByTransitivity, 10417.6ms TimeCoverageRelationStatistics Valid=16196, Invalid=29386, Unknown=0, NotChecked=0, Total=45582 [2021-05-06 06:02:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2021-05-06 06:02:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 10398. [2021-05-06 06:02:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10398 states, 10393 states have (on average 1.0185701914750314) internal successors, (10586), 10393 states have internal predecessors, (10586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10398 states to 10398 states and 10590 transitions. [2021-05-06 06:02:36,932 INFO L78 Accepts]: Start accepts. Automaton has 10398 states and 10590 transitions. Word has length 219 [2021-05-06 06:02:36,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:36,932 INFO L480 AbstractCegarLoop]: Abstraction has 10398 states and 10590 transitions. [2021-05-06 06:02:36,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 110 states, 110 states have (on average 2.0090909090909093) internal successors, (221), 107 states have internal predecessors, (221), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 10398 states and 10590 transitions. [2021-05-06 06:02:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-05-06 06:02:36,940 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:36,941 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:37,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-05-06 06:02:37,162 INFO L428 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:37,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1027089956, now seen corresponding path program 3 times [2021-05-06 06:02:37,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:37,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224948773] [2021-05-06 06:02:37,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:41,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 9912 backedges. 0 proven. 9912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:41,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:41,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224948773] [2021-05-06 06:02:41,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224948773] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:41,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462028487] [2021-05-06 06:02:41,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:41,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-06 06:02:41,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:02:41,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 106 conjunts are in the unsatisfiable core [2021-05-06 06:02:41,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:41,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:41,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9912 backedges. 0 proven. 9912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:42,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462028487] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:42,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:02:42,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 107] total 111 [2021-05-06 06:02:42,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133443819] [2021-05-06 06:02:42,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 111 states [2021-05-06 06:02:42,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:42,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-05-06 06:02:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5577, Invalid=6633, Unknown=0, NotChecked=0, Total=12210 [2021-05-06 06:02:42,162 INFO L87 Difference]: Start difference. First operand 10398 states and 10590 transitions. Second operand has 111 states, 111 states have (on average 2.009009009009009) internal successors, (223), 108 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:02:49,950 INFO L93 Difference]: Finished difference Result 10606 states and 10896 transitions. [2021-05-06 06:02:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-05-06 06:02:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 2.009009009009009) internal successors, (223), 108 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2021-05-06 06:02:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:02:49,991 INFO L225 Difference]: With dead ends: 10606 [2021-05-06 06:02:49,992 INFO L226 Difference]: Without dead ends: 10401 [2021-05-06 06:02:49,993 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6486 ImplicationChecksByTransitivity, 10502.4ms TimeCoverageRelationStatistics Valid=16509, Invalid=29931, Unknown=0, NotChecked=0, Total=46440 [2021-05-06 06:02:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10401 states. [2021-05-06 06:02:50,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10401 to 10389. [2021-05-06 06:02:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10384 states have (on average 1.0183936825885977) internal successors, (10575), 10384 states have internal predecessors, (10575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:50,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 10579 transitions. [2021-05-06 06:02:50,117 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 10579 transitions. Word has length 221 [2021-05-06 06:02:50,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:02:50,117 INFO L480 AbstractCegarLoop]: Abstraction has 10389 states and 10579 transitions. [2021-05-06 06:02:50,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 111 states, 111 states have (on average 2.009009009009009) internal successors, (223), 108 states have internal predecessors, (223), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:02:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 10579 transitions. [2021-05-06 06:02:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-05-06 06:02:50,126 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:02:50,126 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:02:50,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-05-06 06:02:50,343 INFO L428 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:02:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:02:50,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1841656824, now seen corresponding path program 4 times [2021-05-06 06:02:50,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:02:50,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596881736] [2021-05-06 06:02:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:02:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:02:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:02:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9920 backedges. 0 proven. 9920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:54,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:02:54,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596881736] [2021-05-06 06:02:54,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596881736] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:54,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501547964] [2021-05-06 06:02:54,189 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:02:54,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:02:54,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:02:54,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 107 conjunts are in the unsatisfiable core [2021-05-06 06:02:54,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:02:54,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:02:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9920 backedges. 0 proven. 9920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:02:54,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501547964] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:02:54,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:02:54,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 108] total 112 [2021-05-06 06:02:54,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522003263] [2021-05-06 06:02:54,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states [2021-05-06 06:02:54,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:02:54,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2021-05-06 06:02:54,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5683, Invalid=6749, Unknown=0, NotChecked=0, Total=12432 [2021-05-06 06:02:54,772 INFO L87 Difference]: Start difference. First operand 10389 states and 10579 transitions. Second operand has 112 states, 112 states have (on average 2.0089285714285716) internal successors, (225), 109 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:03:02,424 INFO L93 Difference]: Finished difference Result 10598 states and 10886 transitions. [2021-05-06 06:03:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-05-06 06:03:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 2.0089285714285716) internal successors, (225), 109 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2021-05-06 06:03:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:03:02,437 INFO L225 Difference]: With dead ends: 10598 [2021-05-06 06:03:02,437 INFO L226 Difference]: Without dead ends: 10393 [2021-05-06 06:03:02,438 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6601 ImplicationChecksByTransitivity, 9836.2ms TimeCoverageRelationStatistics Valid=16825, Invalid=30481, Unknown=0, NotChecked=0, Total=47306 [2021-05-06 06:03:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10393 states. [2021-05-06 06:03:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10393 to 10378. [2021-05-06 06:03:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10378 states, 10373 states have (on average 1.0182203798322569) internal successors, (10562), 10373 states have internal predecessors, (10562), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10378 states to 10378 states and 10566 transitions. [2021-05-06 06:03:02,483 INFO L78 Accepts]: Start accepts. Automaton has 10378 states and 10566 transitions. Word has length 223 [2021-05-06 06:03:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:03:02,483 INFO L480 AbstractCegarLoop]: Abstraction has 10378 states and 10566 transitions. [2021-05-06 06:03:02,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 112 states, 112 states have (on average 2.0089285714285716) internal successors, (225), 109 states have internal predecessors, (225), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 10378 states and 10566 transitions. [2021-05-06 06:03:02,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-05-06 06:03:02,490 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:03:02,490 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:03:02,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-05-06 06:03:02,705 INFO L428 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:03:02,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:03:02,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1338308372, now seen corresponding path program 5 times [2021-05-06 06:03:02,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:03:02,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709831766] [2021-05-06 06:03:02,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:03:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:06,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:03:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 9930 backedges. 0 proven. 9930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:06,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:03:06,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709831766] [2021-05-06 06:03:06,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709831766] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:06,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801672634] [2021-05-06 06:03:06,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:07,092 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 100 check-sat command(s) [2021-05-06 06:03:07,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:03:07,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 108 conjunts are in the unsatisfiable core [2021-05-06 06:03:07,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:03:07,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:07,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9930 backedges. 0 proven. 9930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:07,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801672634] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:07,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:03:07,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 109] total 113 [2021-05-06 06:03:07,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969575221] [2021-05-06 06:03:07,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 113 states [2021-05-06 06:03:07,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:03:07,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2021-05-06 06:03:07,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5790, Invalid=6866, Unknown=0, NotChecked=0, Total=12656 [2021-05-06 06:03:07,563 INFO L87 Difference]: Start difference. First operand 10378 states and 10566 transitions. Second operand has 113 states, 113 states have (on average 2.0088495575221237) internal successors, (227), 110 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:03:15,222 INFO L93 Difference]: Finished difference Result 10588 states and 10874 transitions. [2021-05-06 06:03:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2021-05-06 06:03:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 113 states have (on average 2.0088495575221237) internal successors, (227), 110 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2021-05-06 06:03:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:03:15,231 INFO L225 Difference]: With dead ends: 10588 [2021-05-06 06:03:15,232 INFO L226 Difference]: Without dead ends: 10383 [2021-05-06 06:03:15,234 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6717 ImplicationChecksByTransitivity, 10202.7ms TimeCoverageRelationStatistics Valid=17144, Invalid=31036, Unknown=0, NotChecked=0, Total=48180 [2021-05-06 06:03:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10383 states. [2021-05-06 06:03:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10383 to 10365. [2021-05-06 06:03:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10365 states, 10360 states have (on average 1.018050193050193) internal successors, (10547), 10360 states have internal predecessors, (10547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10365 states to 10365 states and 10551 transitions. [2021-05-06 06:03:15,296 INFO L78 Accepts]: Start accepts. Automaton has 10365 states and 10551 transitions. Word has length 225 [2021-05-06 06:03:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:03:15,296 INFO L480 AbstractCegarLoop]: Abstraction has 10365 states and 10551 transitions. [2021-05-06 06:03:15,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 113 states, 113 states have (on average 2.0088495575221237) internal successors, (227), 110 states have internal predecessors, (227), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10365 states and 10551 transitions. [2021-05-06 06:03:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-05-06 06:03:15,305 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:03:15,305 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:03:15,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-05-06 06:03:15,523 INFO L428 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:03:15,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:03:15,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1343216848, now seen corresponding path program 6 times [2021-05-06 06:03:15,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:03:15,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226603637] [2021-05-06 06:03:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:03:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:19,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:03:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9942 backedges. 0 proven. 9942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:19,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:03:19,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226603637] [2021-05-06 06:03:19,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226603637] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:19,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547521584] [2021-05-06 06:03:19,912 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:20,168 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 100 check-sat command(s) [2021-05-06 06:03:20,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:03:20,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 109 conjunts are in the unsatisfiable core [2021-05-06 06:03:20,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:03:20,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9942 backedges. 0 proven. 9942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:20,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547521584] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:20,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:03:20,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 110] total 114 [2021-05-06 06:03:20,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242365617] [2021-05-06 06:03:20,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 114 states [2021-05-06 06:03:20,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:03:20,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2021-05-06 06:03:20,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5898, Invalid=6984, Unknown=0, NotChecked=0, Total=12882 [2021-05-06 06:03:20,592 INFO L87 Difference]: Start difference. First operand 10365 states and 10551 transitions. Second operand has 114 states, 114 states have (on average 2.008771929824561) internal successors, (229), 111 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:03:28,748 INFO L93 Difference]: Finished difference Result 10576 states and 10860 transitions. [2021-05-06 06:03:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-05-06 06:03:28,749 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 2.008771929824561) internal successors, (229), 111 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2021-05-06 06:03:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:03:28,754 INFO L225 Difference]: With dead ends: 10576 [2021-05-06 06:03:28,754 INFO L226 Difference]: Without dead ends: 10371 [2021-05-06 06:03:28,756 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6834 ImplicationChecksByTransitivity, 10788.0ms TimeCoverageRelationStatistics Valid=17466, Invalid=31596, Unknown=0, NotChecked=0, Total=49062 [2021-05-06 06:03:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2021-05-06 06:03:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 10350. [2021-05-06 06:03:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10350 states, 10345 states have (on average 1.0178830352827453) internal successors, (10530), 10345 states have internal predecessors, (10530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10350 states to 10350 states and 10534 transitions. [2021-05-06 06:03:28,814 INFO L78 Accepts]: Start accepts. Automaton has 10350 states and 10534 transitions. Word has length 227 [2021-05-06 06:03:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:03:28,814 INFO L480 AbstractCegarLoop]: Abstraction has 10350 states and 10534 transitions. [2021-05-06 06:03:28,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 114 states, 114 states have (on average 2.008771929824561) internal successors, (229), 111 states have internal predecessors, (229), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 10350 states and 10534 transitions. [2021-05-06 06:03:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-05-06 06:03:28,824 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:03:28,824 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:03:29,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:29,041 INFO L428 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:03:29,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:03:29,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1308575668, now seen corresponding path program 7 times [2021-05-06 06:03:29,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:03:29,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548987674] [2021-05-06 06:03:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:03:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:33,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:03:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 9956 backedges. 0 proven. 9956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:33,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:03:33,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548987674] [2021-05-06 06:03:33,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548987674] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:33,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426249005] [2021-05-06 06:03:33,228 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:33,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 110 conjunts are in the unsatisfiable core [2021-05-06 06:03:33,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:03:33,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9956 backedges. 0 proven. 9956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:33,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426249005] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:33,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:03:33,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 111] total 115 [2021-05-06 06:03:33,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992101964] [2021-05-06 06:03:33,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 115 states [2021-05-06 06:03:33,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:03:33,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-05-06 06:03:33,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6007, Invalid=7103, Unknown=0, NotChecked=0, Total=13110 [2021-05-06 06:03:33,851 INFO L87 Difference]: Start difference. First operand 10350 states and 10534 transitions. Second operand has 115 states, 115 states have (on average 2.008695652173913) internal successors, (231), 112 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:03:42,189 INFO L93 Difference]: Finished difference Result 10562 states and 10844 transitions. [2021-05-06 06:03:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-05-06 06:03:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 2.008695652173913) internal successors, (231), 112 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2021-05-06 06:03:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:03:42,195 INFO L225 Difference]: With dead ends: 10562 [2021-05-06 06:03:42,195 INFO L226 Difference]: Without dead ends: 10357 [2021-05-06 06:03:42,198 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6952 ImplicationChecksByTransitivity, 10789.3ms TimeCoverageRelationStatistics Valid=17791, Invalid=32161, Unknown=0, NotChecked=0, Total=49952 [2021-05-06 06:03:42,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10357 states. [2021-05-06 06:03:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10357 to 10333. [2021-05-06 06:03:42,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10333 states, 10328 states have (on average 1.0177188226181255) internal successors, (10511), 10328 states have internal predecessors, (10511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10333 states to 10333 states and 10515 transitions. [2021-05-06 06:03:42,255 INFO L78 Accepts]: Start accepts. Automaton has 10333 states and 10515 transitions. Word has length 229 [2021-05-06 06:03:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:03:42,255 INFO L480 AbstractCegarLoop]: Abstraction has 10333 states and 10515 transitions. [2021-05-06 06:03:42,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 115 states, 115 states have (on average 2.008695652173913) internal successors, (231), 112 states have internal predecessors, (231), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 10333 states and 10515 transitions. [2021-05-06 06:03:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-05-06 06:03:42,263 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:03:42,263 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:03:42,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,108 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:42,481 INFO L428 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:03:42,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:03:42,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1916827240, now seen corresponding path program 8 times [2021-05-06 06:03:42,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:03:42,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877580276] [2021-05-06 06:03:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:03:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:46,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:03:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:03:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 9972 backedges. 0 proven. 9972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:46,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:03:46,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877580276] [2021-05-06 06:03:46,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877580276] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:46,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011027269] [2021-05-06 06:03:46,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:46,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:03:46,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:03:46,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 111 conjunts are in the unsatisfiable core [2021-05-06 06:03:46,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:03:46,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:46,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:03:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9972 backedges. 0 proven. 9972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:03:47,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011027269] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:03:47,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:03:47,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 112] total 116 [2021-05-06 06:03:47,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492087] [2021-05-06 06:03:47,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 116 states [2021-05-06 06:03:47,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:03:47,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2021-05-06 06:03:47,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6117, Invalid=7223, Unknown=0, NotChecked=0, Total=13340 [2021-05-06 06:03:47,480 INFO L87 Difference]: Start difference. First operand 10333 states and 10515 transitions. Second operand has 116 states, 116 states have (on average 2.0086206896551726) internal successors, (233), 113 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:55,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:03:55,343 INFO L93 Difference]: Finished difference Result 10546 states and 10826 transitions. [2021-05-06 06:03:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-05-06 06:03:55,343 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 2.0086206896551726) internal successors, (233), 113 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2021-05-06 06:03:55,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:03:55,350 INFO L225 Difference]: With dead ends: 10546 [2021-05-06 06:03:55,350 INFO L226 Difference]: Without dead ends: 10341 [2021-05-06 06:03:55,353 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7071 ImplicationChecksByTransitivity, 10403.1ms TimeCoverageRelationStatistics Valid=18119, Invalid=32731, Unknown=0, NotChecked=0, Total=50850 [2021-05-06 06:03:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10341 states. [2021-05-06 06:03:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10341 to 10314. [2021-05-06 06:03:55,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10314 states, 10309 states have (on average 1.0175574740517994) internal successors, (10490), 10309 states have internal predecessors, (10490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10314 states to 10314 states and 10494 transitions. [2021-05-06 06:03:55,423 INFO L78 Accepts]: Start accepts. Automaton has 10314 states and 10494 transitions. Word has length 231 [2021-05-06 06:03:55,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:03:55,423 INFO L480 AbstractCegarLoop]: Abstraction has 10314 states and 10494 transitions. [2021-05-06 06:03:55,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 116 states, 116 states have (on average 2.0086206896551726) internal successors, (233), 113 states have internal predecessors, (233), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:03:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 10314 states and 10494 transitions. [2021-05-06 06:03:55,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-05-06 06:03:55,434 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:03:55,434 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:03:55,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:03:55,659 INFO L428 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:03:55,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:03:55,660 INFO L82 PathProgramCache]: Analyzing trace with hash -562634116, now seen corresponding path program 9 times [2021-05-06 06:03:55,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:03:55,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484906213] [2021-05-06 06:03:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:03:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:00,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:04:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9990 backedges. 0 proven. 9990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:00,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:04:00,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484906213] [2021-05-06 06:04:00,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484906213] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:00,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667933945] [2021-05-06 06:04:00,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:00,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-06 06:04:00,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:04:00,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 112 conjunts are in the unsatisfiable core [2021-05-06 06:04:00,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:04:00,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:00,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:01,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9990 backedges. 0 proven. 9990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:01,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667933945] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:01,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:04:01,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 113] total 117 [2021-05-06 06:04:01,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817214233] [2021-05-06 06:04:01,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 117 states [2021-05-06 06:04:01,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:04:01,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2021-05-06 06:04:01,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6228, Invalid=7344, Unknown=0, NotChecked=0, Total=13572 [2021-05-06 06:04:01,282 INFO L87 Difference]: Start difference. First operand 10314 states and 10494 transitions. Second operand has 117 states, 117 states have (on average 2.0085470085470085) internal successors, (235), 114 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:04:09,830 INFO L93 Difference]: Finished difference Result 10528 states and 10806 transitions. [2021-05-06 06:04:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-05-06 06:04:09,831 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 117 states have (on average 2.0085470085470085) internal successors, (235), 114 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2021-05-06 06:04:09,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:04:09,838 INFO L225 Difference]: With dead ends: 10528 [2021-05-06 06:04:09,838 INFO L226 Difference]: Without dead ends: 10323 [2021-05-06 06:04:09,841 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7191 ImplicationChecksByTransitivity, 11614.7ms TimeCoverageRelationStatistics Valid=18450, Invalid=33306, Unknown=0, NotChecked=0, Total=51756 [2021-05-06 06:04:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10323 states. [2021-05-06 06:04:09,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10323 to 10293. [2021-05-06 06:04:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10293 states, 10288 states have (on average 1.0173989113530326) internal successors, (10467), 10288 states have internal predecessors, (10467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:09,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10293 states to 10293 states and 10471 transitions. [2021-05-06 06:04:09,913 INFO L78 Accepts]: Start accepts. Automaton has 10293 states and 10471 transitions. Word has length 233 [2021-05-06 06:04:09,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:04:09,913 INFO L480 AbstractCegarLoop]: Abstraction has 10293 states and 10471 transitions. [2021-05-06 06:04:09,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 117 states, 117 states have (on average 2.0085470085470085) internal successors, (235), 114 states have internal predecessors, (235), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:09,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10293 states and 10471 transitions. [2021-05-06 06:04:09,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-05-06 06:04:09,923 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:04:09,923 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:04:10,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,110 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:10,149 INFO L428 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:04:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:04:10,149 INFO L82 PathProgramCache]: Analyzing trace with hash -558132640, now seen corresponding path program 10 times [2021-05-06 06:04:10,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:04:10,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417755332] [2021-05-06 06:04:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:04:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:14,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:04:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 0 proven. 10010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:14,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:04:14,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417755332] [2021-05-06 06:04:14,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417755332] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:14,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122833263] [2021-05-06 06:04:14,536 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:14,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:04:14,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:04:14,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 113 conjunts are in the unsatisfiable core [2021-05-06 06:04:14,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:04:14,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:14,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:15,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:15,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:15,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 0 proven. 10010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:15,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122833263] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:15,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:04:15,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 114] total 118 [2021-05-06 06:04:15,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445746964] [2021-05-06 06:04:15,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states [2021-05-06 06:04:15,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:04:15,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2021-05-06 06:04:15,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6340, Invalid=7466, Unknown=0, NotChecked=0, Total=13806 [2021-05-06 06:04:15,085 INFO L87 Difference]: Start difference. First operand 10293 states and 10471 transitions. Second operand has 118 states, 118 states have (on average 2.0084745762711864) internal successors, (237), 115 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:04:23,533 INFO L93 Difference]: Finished difference Result 10508 states and 10784 transitions. [2021-05-06 06:04:23,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-05-06 06:04:23,533 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 118 states have (on average 2.0084745762711864) internal successors, (237), 115 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2021-05-06 06:04:23,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:04:23,539 INFO L225 Difference]: With dead ends: 10508 [2021-05-06 06:04:23,539 INFO L226 Difference]: Without dead ends: 10303 [2021-05-06 06:04:23,541 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7312 ImplicationChecksByTransitivity, 11000.3ms TimeCoverageRelationStatistics Valid=18784, Invalid=33886, Unknown=0, NotChecked=0, Total=52670 [2021-05-06 06:04:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2021-05-06 06:04:23,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 10270. [2021-05-06 06:04:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10270 states, 10265 states have (on average 1.0172430589381394) internal successors, (10442), 10265 states have internal predecessors, (10442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10270 states to 10270 states and 10446 transitions. [2021-05-06 06:04:23,583 INFO L78 Accepts]: Start accepts. Automaton has 10270 states and 10446 transitions. Word has length 235 [2021-05-06 06:04:23,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:04:23,583 INFO L480 AbstractCegarLoop]: Abstraction has 10270 states and 10446 transitions. [2021-05-06 06:04:23,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 118 states, 118 states have (on average 2.0084745762711864) internal successors, (237), 115 states have internal predecessors, (237), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 10270 states and 10446 transitions. [2021-05-06 06:04:23,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-05-06 06:04:23,590 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:04:23,590 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:04:23,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-05-06 06:04:23,805 INFO L428 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:04:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:04:23,805 INFO L82 PathProgramCache]: Analyzing trace with hash -527181500, now seen corresponding path program 11 times [2021-05-06 06:04:23,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:04:23,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258679581] [2021-05-06 06:04:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:04:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:04:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10032 backedges. 0 proven. 10032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:28,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:04:28,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258679581] [2021-05-06 06:04:28,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258679581] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:28,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445556177] [2021-05-06 06:04:28,387 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:28,607 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 100 check-sat command(s) [2021-05-06 06:04:28,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:04:28,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 114 conjunts are in the unsatisfiable core [2021-05-06 06:04:28,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:04:28,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:28,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:29,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10032 backedges. 0 proven. 10032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:29,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445556177] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:29,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:04:29,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 115] total 119 [2021-05-06 06:04:29,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720686852] [2021-05-06 06:04:29,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 119 states [2021-05-06 06:04:29,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:04:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2021-05-06 06:04:29,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6453, Invalid=7589, Unknown=0, NotChecked=0, Total=14042 [2021-05-06 06:04:29,072 INFO L87 Difference]: Start difference. First operand 10270 states and 10446 transitions. Second operand has 119 states, 119 states have (on average 2.008403361344538) internal successors, (239), 116 states have internal predecessors, (239), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:04:37,780 INFO L93 Difference]: Finished difference Result 10486 states and 10760 transitions. [2021-05-06 06:04:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-05-06 06:04:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 2.008403361344538) internal successors, (239), 116 states have internal predecessors, (239), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 237 [2021-05-06 06:04:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:04:37,786 INFO L225 Difference]: With dead ends: 10486 [2021-05-06 06:04:37,786 INFO L226 Difference]: Without dead ends: 10281 [2021-05-06 06:04:37,788 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7434 ImplicationChecksByTransitivity, 11532.6ms TimeCoverageRelationStatistics Valid=19121, Invalid=34471, Unknown=0, NotChecked=0, Total=53592 [2021-05-06 06:04:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10281 states. [2021-05-06 06:04:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10281 to 10245. [2021-05-06 06:04:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10245 states, 10240 states have (on average 1.01708984375) internal successors, (10415), 10240 states have internal predecessors, (10415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10245 states to 10245 states and 10419 transitions. [2021-05-06 06:04:37,841 INFO L78 Accepts]: Start accepts. Automaton has 10245 states and 10419 transitions. Word has length 237 [2021-05-06 06:04:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:04:37,841 INFO L480 AbstractCegarLoop]: Abstraction has 10245 states and 10419 transitions. [2021-05-06 06:04:37,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 119 states, 119 states have (on average 2.008403361344538) internal successors, (239), 116 states have internal predecessors, (239), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10245 states and 10419 transitions. [2021-05-06 06:04:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-05-06 06:04:37,848 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:04:37,849 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:04:38,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-05-06 06:04:38,067 INFO L428 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:04:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:04:38,067 INFO L82 PathProgramCache]: Analyzing trace with hash -847907032, now seen corresponding path program 12 times [2021-05-06 06:04:38,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:04:38,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309867270] [2021-05-06 06:04:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:04:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:42,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:04:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10056 backedges. 0 proven. 10056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:42,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:04:42,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309867270] [2021-05-06 06:04:42,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309867270] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:42,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320839875] [2021-05-06 06:04:42,776 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:43,035 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 100 check-sat command(s) [2021-05-06 06:04:43,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:04:43,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 115 conjunts are in the unsatisfiable core [2021-05-06 06:04:43,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:04:43,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:43,532 INFO L134 CoverageAnalysis]: Checked inductivity of 10056 backedges. 0 proven. 10056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:43,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320839875] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:43,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:04:43,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 116] total 120 [2021-05-06 06:04:43,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972198613] [2021-05-06 06:04:43,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 120 states [2021-05-06 06:04:43,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:04:43,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2021-05-06 06:04:43,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6567, Invalid=7713, Unknown=0, NotChecked=0, Total=14280 [2021-05-06 06:04:43,534 INFO L87 Difference]: Start difference. First operand 10245 states and 10419 transitions. Second operand has 120 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 117 states have internal predecessors, (241), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:04:52,320 INFO L93 Difference]: Finished difference Result 10462 states and 10734 transitions. [2021-05-06 06:04:52,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-05-06 06:04:52,320 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 117 states have internal predecessors, (241), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2021-05-06 06:04:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:04:52,325 INFO L225 Difference]: With dead ends: 10462 [2021-05-06 06:04:52,325 INFO L226 Difference]: Without dead ends: 10257 [2021-05-06 06:04:52,327 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7557 ImplicationChecksByTransitivity, 11665.2ms TimeCoverageRelationStatistics Valid=19461, Invalid=35061, Unknown=0, NotChecked=0, Total=54522 [2021-05-06 06:04:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10257 states. [2021-05-06 06:04:52,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10257 to 10218. [2021-05-06 06:04:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10218 states, 10213 states have (on average 1.0169391951434446) internal successors, (10386), 10213 states have internal predecessors, (10386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10218 states to 10218 states and 10390 transitions. [2021-05-06 06:04:52,374 INFO L78 Accepts]: Start accepts. Automaton has 10218 states and 10390 transitions. Word has length 239 [2021-05-06 06:04:52,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:04:52,374 INFO L480 AbstractCegarLoop]: Abstraction has 10218 states and 10390 transitions. [2021-05-06 06:04:52,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 120 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 117 states have internal predecessors, (241), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:04:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10218 states and 10390 transitions. [2021-05-06 06:04:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-05-06 06:04:52,381 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:04:52,381 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:04:52,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-05-06 06:04:52,599 INFO L428 AbstractCegarLoop]: === Iteration 115 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:04:52,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:04:52,599 INFO L82 PathProgramCache]: Analyzing trace with hash 172502028, now seen corresponding path program 13 times [2021-05-06 06:04:52,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:04:52,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443848699] [2021-05-06 06:04:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:04:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:04:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 10082 backedges. 0 proven. 10082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:57,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:04:57,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443848699] [2021-05-06 06:04:57,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443848699] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:57,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800590786] [2021-05-06 06:04:57,491 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:04:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:04:57,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 116 conjunts are in the unsatisfiable core [2021-05-06 06:04:57,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:04:57,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:57,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:04:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10082 backedges. 0 proven. 10082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:04:58,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800590786] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:04:58,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:04:58,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 117] total 121 [2021-05-06 06:04:58,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775140593] [2021-05-06 06:04:58,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 121 states [2021-05-06 06:04:58,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:04:58,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-05-06 06:04:58,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6682, Invalid=7838, Unknown=0, NotChecked=0, Total=14520 [2021-05-06 06:04:58,127 INFO L87 Difference]: Start difference. First operand 10218 states and 10390 transitions. Second operand has 121 states, 121 states have (on average 2.0082644628099175) internal successors, (243), 118 states have internal predecessors, (243), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:05:07,732 INFO L93 Difference]: Finished difference Result 10436 states and 10706 transitions. [2021-05-06 06:05:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-05-06 06:05:07,732 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 121 states have (on average 2.0082644628099175) internal successors, (243), 118 states have internal predecessors, (243), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2021-05-06 06:05:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:05:07,738 INFO L225 Difference]: With dead ends: 10436 [2021-05-06 06:05:07,738 INFO L226 Difference]: Without dead ends: 10231 [2021-05-06 06:05:07,740 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7681 ImplicationChecksByTransitivity, 12566.1ms TimeCoverageRelationStatistics Valid=19804, Invalid=35656, Unknown=0, NotChecked=0, Total=55460 [2021-05-06 06:05:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2021-05-06 06:05:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 10189. [2021-05-06 06:05:07,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10184 states have (on average 1.0167910447761195) internal successors, (10355), 10184 states have internal predecessors, (10355), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 10359 transitions. [2021-05-06 06:05:07,798 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 10359 transitions. Word has length 241 [2021-05-06 06:05:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:05:07,798 INFO L480 AbstractCegarLoop]: Abstraction has 10189 states and 10359 transitions. [2021-05-06 06:05:07,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 121 states, 121 states have (on average 2.0082644628099175) internal successors, (243), 118 states have internal predecessors, (243), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 10359 transitions. [2021-05-06 06:05:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-05-06 06:05:07,805 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:05:07,805 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:05:08,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-05-06 06:05:08,022 INFO L428 AbstractCegarLoop]: === Iteration 116 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:05:08,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:05:08,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1533065200, now seen corresponding path program 14 times [2021-05-06 06:05:08,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:05:08,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929174227] [2021-05-06 06:05:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:05:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:05:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10110 backedges. 0 proven. 10110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:13,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:05:13,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929174227] [2021-05-06 06:05:13,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929174227] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:13,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88253456] [2021-05-06 06:05:13,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:05:13,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:05:13,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:05:13,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 117 conjunts are in the unsatisfiable core [2021-05-06 06:05:13,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:05:13,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10110 backedges. 0 proven. 10110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:13,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88253456] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:13,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:05:13,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 118] total 122 [2021-05-06 06:05:13,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006784962] [2021-05-06 06:05:13,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 122 states [2021-05-06 06:05:13,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:05:13,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2021-05-06 06:05:13,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6798, Invalid=7964, Unknown=0, NotChecked=0, Total=14762 [2021-05-06 06:05:13,680 INFO L87 Difference]: Start difference. First operand 10189 states and 10359 transitions. Second operand has 122 states, 122 states have (on average 2.0081967213114753) internal successors, (245), 119 states have internal predecessors, (245), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:23,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:05:23,322 INFO L93 Difference]: Finished difference Result 10408 states and 10676 transitions. [2021-05-06 06:05:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2021-05-06 06:05:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 122 states have (on average 2.0081967213114753) internal successors, (245), 119 states have internal predecessors, (245), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2021-05-06 06:05:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:05:23,328 INFO L225 Difference]: With dead ends: 10408 [2021-05-06 06:05:23,328 INFO L226 Difference]: Without dead ends: 10203 [2021-05-06 06:05:23,331 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7806 ImplicationChecksByTransitivity, 12661.6ms TimeCoverageRelationStatistics Valid=20150, Invalid=36256, Unknown=0, NotChecked=0, Total=56406 [2021-05-06 06:05:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2021-05-06 06:05:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 10158. [2021-05-06 06:05:23,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10158 states, 10153 states have (on average 1.0166453265044815) internal successors, (10322), 10153 states have internal predecessors, (10322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10158 states to 10158 states and 10326 transitions. [2021-05-06 06:05:23,385 INFO L78 Accepts]: Start accepts. Automaton has 10158 states and 10326 transitions. Word has length 243 [2021-05-06 06:05:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:05:23,385 INFO L480 AbstractCegarLoop]: Abstraction has 10158 states and 10326 transitions. [2021-05-06 06:05:23,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 122 states, 122 states have (on average 2.0081967213114753) internal successors, (245), 119 states have internal predecessors, (245), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 10158 states and 10326 transitions. [2021-05-06 06:05:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-05-06 06:05:23,394 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:05:23,394 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:05:23,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:05:23,611 INFO L428 AbstractCegarLoop]: === Iteration 117 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:05:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:05:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash -930751788, now seen corresponding path program 15 times [2021-05-06 06:05:23,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:05:23,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865641347] [2021-05-06 06:05:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:05:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:28,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:05:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10140 backedges. 0 proven. 10140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:28,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:05:28,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865641347] [2021-05-06 06:05:28,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865641347] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:28,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876385471] [2021-05-06 06:05:28,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:05:29,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-06 06:05:29,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:05:29,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 118 conjunts are in the unsatisfiable core [2021-05-06 06:05:29,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:05:29,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10140 backedges. 0 proven. 10140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:29,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876385471] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:29,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:05:29,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 119] total 123 [2021-05-06 06:05:29,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240477046] [2021-05-06 06:05:29,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 123 states [2021-05-06 06:05:29,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:05:29,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2021-05-06 06:05:29,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6915, Invalid=8091, Unknown=0, NotChecked=0, Total=15006 [2021-05-06 06:05:29,629 INFO L87 Difference]: Start difference. First operand 10158 states and 10326 transitions. Second operand has 123 states, 123 states have (on average 2.008130081300813) internal successors, (247), 120 states have internal predecessors, (247), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:05:39,030 INFO L93 Difference]: Finished difference Result 10378 states and 10644 transitions. [2021-05-06 06:05:39,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-05-06 06:05:39,030 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 123 states have (on average 2.008130081300813) internal successors, (247), 120 states have internal predecessors, (247), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 245 [2021-05-06 06:05:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:05:39,036 INFO L225 Difference]: With dead ends: 10378 [2021-05-06 06:05:39,036 INFO L226 Difference]: Without dead ends: 10173 [2021-05-06 06:05:39,037 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7932 ImplicationChecksByTransitivity, 12695.6ms TimeCoverageRelationStatistics Valid=20499, Invalid=36861, Unknown=0, NotChecked=0, Total=57360 [2021-05-06 06:05:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2021-05-06 06:05:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 10125. [2021-05-06 06:05:39,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10120 states have (on average 1.016501976284585) internal successors, (10287), 10120 states have internal predecessors, (10287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 10291 transitions. [2021-05-06 06:05:39,097 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 10291 transitions. Word has length 245 [2021-05-06 06:05:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:05:39,097 INFO L480 AbstractCegarLoop]: Abstraction has 10125 states and 10291 transitions. [2021-05-06 06:05:39,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 123 states, 123 states have (on average 2.008130081300813) internal successors, (247), 120 states have internal predecessors, (247), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 10291 transitions. [2021-05-06 06:05:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-05-06 06:05:39,106 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:05:39,106 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:05:39,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-05-06 06:05:39,321 INFO L428 AbstractCegarLoop]: === Iteration 118 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:05:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:05:39,321 INFO L82 PathProgramCache]: Analyzing trace with hash -2131897160, now seen corresponding path program 16 times [2021-05-06 06:05:39,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:05:39,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185530968] [2021-05-06 06:05:39,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:05:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:44,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:05:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:05:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 0 proven. 10172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:44,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:05:44,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185530968] [2021-05-06 06:05:44,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185530968] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:44,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641680986] [2021-05-06 06:05:44,511 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:05:44,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:05:44,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:05:44,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 119 conjunts are in the unsatisfiable core [2021-05-06 06:05:44,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:05:44,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:44,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:05:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10172 backedges. 0 proven. 10172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:05:45,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641680986] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:05:45,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:05:45,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 120] total 124 [2021-05-06 06:05:45,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657103620] [2021-05-06 06:05:45,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 124 states [2021-05-06 06:05:45,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:05:45,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2021-05-06 06:05:45,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7033, Invalid=8219, Unknown=0, NotChecked=0, Total=15252 [2021-05-06 06:05:45,207 INFO L87 Difference]: Start difference. First operand 10125 states and 10291 transitions. Second operand has 124 states, 124 states have (on average 2.0080645161290325) internal successors, (249), 121 states have internal predecessors, (249), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:05:54,757 INFO L93 Difference]: Finished difference Result 10346 states and 10610 transitions. [2021-05-06 06:05:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-05-06 06:05:54,757 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 2.0080645161290325) internal successors, (249), 121 states have internal predecessors, (249), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2021-05-06 06:05:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:05:54,763 INFO L225 Difference]: With dead ends: 10346 [2021-05-06 06:05:54,763 INFO L226 Difference]: Without dead ends: 10141 [2021-05-06 06:05:54,766 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8059 ImplicationChecksByTransitivity, 12712.6ms TimeCoverageRelationStatistics Valid=20851, Invalid=37471, Unknown=0, NotChecked=0, Total=58322 [2021-05-06 06:05:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10141 states. [2021-05-06 06:05:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10141 to 10090. [2021-05-06 06:05:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10090 states, 10085 states have (on average 1.0163609320773426) internal successors, (10250), 10085 states have internal predecessors, (10250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10090 states to 10090 states and 10254 transitions. [2021-05-06 06:05:54,808 INFO L78 Accepts]: Start accepts. Automaton has 10090 states and 10254 transitions. Word has length 247 [2021-05-06 06:05:54,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:05:54,809 INFO L480 AbstractCegarLoop]: Abstraction has 10090 states and 10254 transitions. [2021-05-06 06:05:54,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 124 states, 124 states have (on average 2.0080645161290325) internal successors, (249), 121 states have internal predecessors, (249), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:05:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 10090 states and 10254 transitions. [2021-05-06 06:05:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-05-06 06:05:54,816 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:05:54,816 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:05:55,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:05:55,029 INFO L428 AbstractCegarLoop]: === Iteration 119 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:05:55,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:05:55,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1086397028, now seen corresponding path program 17 times [2021-05-06 06:05:55,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:05:55,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373759672] [2021-05-06 06:05:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:05:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:06:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 10206 backedges. 0 proven. 10206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:00,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:06:00,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373759672] [2021-05-06 06:06:00,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373759672] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:00,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724227312] [2021-05-06 06:06:00,256 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:00,483 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 100 check-sat command(s) [2021-05-06 06:06:00,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:06:00,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 120 conjunts are in the unsatisfiable core [2021-05-06 06:06:00,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:06:00,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10206 backedges. 0 proven. 10206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:00,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724227312] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:00,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:06:00,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 121] total 125 [2021-05-06 06:06:00,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124045171] [2021-05-06 06:06:00,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-05-06 06:06:00,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:06:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-05-06 06:06:00,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7152, Invalid=8348, Unknown=0, NotChecked=0, Total=15500 [2021-05-06 06:06:00,964 INFO L87 Difference]: Start difference. First operand 10090 states and 10254 transitions. Second operand has 125 states, 125 states have (on average 2.008) internal successors, (251), 122 states have internal predecessors, (251), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:06:10,516 INFO L93 Difference]: Finished difference Result 10312 states and 10574 transitions. [2021-05-06 06:06:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-05-06 06:06:10,516 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 125 states have (on average 2.008) internal successors, (251), 122 states have internal predecessors, (251), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 249 [2021-05-06 06:06:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:06:10,522 INFO L225 Difference]: With dead ends: 10312 [2021-05-06 06:06:10,522 INFO L226 Difference]: Without dead ends: 10107 [2021-05-06 06:06:10,524 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8187 ImplicationChecksByTransitivity, 12774.2ms TimeCoverageRelationStatistics Valid=21206, Invalid=38086, Unknown=0, NotChecked=0, Total=59292 [2021-05-06 06:06:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2021-05-06 06:06:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 10053. [2021-05-06 06:06:10,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10053 states, 10048 states have (on average 1.0162221337579618) internal successors, (10211), 10048 states have internal predecessors, (10211), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10053 states to 10053 states and 10215 transitions. [2021-05-06 06:06:10,578 INFO L78 Accepts]: Start accepts. Automaton has 10053 states and 10215 transitions. Word has length 249 [2021-05-06 06:06:10,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:06:10,578 INFO L480 AbstractCegarLoop]: Abstraction has 10053 states and 10215 transitions. [2021-05-06 06:06:10,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 125 states, 125 states have (on average 2.008) internal successors, (251), 122 states have internal predecessors, (251), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:10,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10053 states and 10215 transitions. [2021-05-06 06:06:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-05-06 06:06:10,586 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:06:10,586 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:06:10,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2021-05-06 06:06:10,804 INFO L428 AbstractCegarLoop]: === Iteration 120 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:06:10,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:06:10,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1383117440, now seen corresponding path program 18 times [2021-05-06 06:06:10,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:06:10,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265023036] [2021-05-06 06:06:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:06:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:16,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:06:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 10242 backedges. 0 proven. 10242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:16,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:06:16,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265023036] [2021-05-06 06:06:16,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265023036] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:16,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798941345] [2021-05-06 06:06:16,054 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:16,350 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 100 check-sat command(s) [2021-05-06 06:06:16,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:06:16,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 121 conjunts are in the unsatisfiable core [2021-05-06 06:06:16,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:06:16,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10242 backedges. 0 proven. 10242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:16,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798941345] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:16,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:06:16,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 122] total 126 [2021-05-06 06:06:16,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153937490] [2021-05-06 06:06:16,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 126 states [2021-05-06 06:06:16,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:06:16,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2021-05-06 06:06:16,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7272, Invalid=8478, Unknown=0, NotChecked=0, Total=15750 [2021-05-06 06:06:16,827 INFO L87 Difference]: Start difference. First operand 10053 states and 10215 transitions. Second operand has 126 states, 126 states have (on average 2.007936507936508) internal successors, (253), 123 states have internal predecessors, (253), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:06:26,564 INFO L93 Difference]: Finished difference Result 10276 states and 10536 transitions. [2021-05-06 06:06:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-05-06 06:06:26,564 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 126 states have (on average 2.007936507936508) internal successors, (253), 123 states have internal predecessors, (253), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 251 [2021-05-06 06:06:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:06:26,570 INFO L225 Difference]: With dead ends: 10276 [2021-05-06 06:06:26,570 INFO L226 Difference]: Without dead ends: 10071 [2021-05-06 06:06:26,572 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8316 ImplicationChecksByTransitivity, 12962.0ms TimeCoverageRelationStatistics Valid=21564, Invalid=38706, Unknown=0, NotChecked=0, Total=60270 [2021-05-06 06:06:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10071 states. [2021-05-06 06:06:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10071 to 10014. [2021-05-06 06:06:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10014 states, 10009 states have (on average 1.0160855230292736) internal successors, (10170), 10009 states have internal predecessors, (10170), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10014 states to 10014 states and 10174 transitions. [2021-05-06 06:06:26,629 INFO L78 Accepts]: Start accepts. Automaton has 10014 states and 10174 transitions. Word has length 251 [2021-05-06 06:06:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:06:26,629 INFO L480 AbstractCegarLoop]: Abstraction has 10014 states and 10174 transitions. [2021-05-06 06:06:26,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 126 states, 126 states have (on average 2.007936507936508) internal successors, (253), 123 states have internal predecessors, (253), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 10014 states and 10174 transitions. [2021-05-06 06:06:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-05-06 06:06:26,637 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:06:26,637 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:06:26,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable119 [2021-05-06 06:06:26,856 INFO L428 AbstractCegarLoop]: === Iteration 121 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:06:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:06:26,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1231375460, now seen corresponding path program 19 times [2021-05-06 06:06:26,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:06:26,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711275889] [2021-05-06 06:06:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:06:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:32,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:06:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 10280 backedges. 0 proven. 10280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:32,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:06:32,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711275889] [2021-05-06 06:06:32,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711275889] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:32,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226217581] [2021-05-06 06:06:32,429 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:32,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 122 conjunts are in the unsatisfiable core [2021-05-06 06:06:32,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:06:32,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:32,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:33,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10280 backedges. 0 proven. 10280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:33,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226217581] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:33,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:06:33,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 123] total 127 [2021-05-06 06:06:33,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846748509] [2021-05-06 06:06:33,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 127 states [2021-05-06 06:06:33,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:06:33,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2021-05-06 06:06:33,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7393, Invalid=8609, Unknown=0, NotChecked=0, Total=16002 [2021-05-06 06:06:33,052 INFO L87 Difference]: Start difference. First operand 10014 states and 10174 transitions. Second operand has 127 states, 127 states have (on average 2.0078740157480315) internal successors, (255), 124 states have internal predecessors, (255), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:42,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:06:42,748 INFO L93 Difference]: Finished difference Result 10238 states and 10496 transitions. [2021-05-06 06:06:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-05-06 06:06:42,748 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 127 states have (on average 2.0078740157480315) internal successors, (255), 124 states have internal predecessors, (255), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 253 [2021-05-06 06:06:42,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:06:42,753 INFO L225 Difference]: With dead ends: 10238 [2021-05-06 06:06:42,753 INFO L226 Difference]: Without dead ends: 10033 [2021-05-06 06:06:42,755 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8446 ImplicationChecksByTransitivity, 13247.3ms TimeCoverageRelationStatistics Valid=21925, Invalid=39331, Unknown=0, NotChecked=0, Total=61256 [2021-05-06 06:06:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10033 states. [2021-05-06 06:06:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10033 to 9973. [2021-05-06 06:06:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9968 states have (on average 1.0159510433386838) internal successors, (10127), 9968 states have internal predecessors, (10127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 10131 transitions. [2021-05-06 06:06:42,807 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 10131 transitions. Word has length 253 [2021-05-06 06:06:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:06:42,807 INFO L480 AbstractCegarLoop]: Abstraction has 9973 states and 10131 transitions. [2021-05-06 06:06:42,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 127 states, 127 states have (on average 2.0078740157480315) internal successors, (255), 124 states have internal predecessors, (255), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 10131 transitions. [2021-05-06 06:06:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-05-06 06:06:42,815 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:06:42,815 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:06:43,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:43,029 INFO L428 AbstractCegarLoop]: === Iteration 122 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:06:43,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:06:43,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1203184200, now seen corresponding path program 20 times [2021-05-06 06:06:43,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:06:43,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443876107] [2021-05-06 06:06:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:06:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:48,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:06:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:06:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10320 backedges. 0 proven. 10320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:48,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:06:48,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443876107] [2021-05-06 06:06:48,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443876107] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:48,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184196104] [2021-05-06 06:06:48,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:48,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 06:06:48,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:06:48,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 123 conjunts are in the unsatisfiable core [2021-05-06 06:06:48,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:06:48,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:48,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:06:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10320 backedges. 0 proven. 10320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:06:49,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184196104] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:06:49,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:06:49,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [125, 124] total 128 [2021-05-06 06:06:49,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207684155] [2021-05-06 06:06:49,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 128 states [2021-05-06 06:06:49,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:06:49,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-05-06 06:06:49,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7515, Invalid=8741, Unknown=0, NotChecked=0, Total=16256 [2021-05-06 06:06:49,252 INFO L87 Difference]: Start difference. First operand 9973 states and 10131 transitions. Second operand has 128 states, 128 states have (on average 2.0078125) internal successors, (257), 125 states have internal predecessors, (257), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:59,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:06:59,349 INFO L93 Difference]: Finished difference Result 10198 states and 10454 transitions. [2021-05-06 06:06:59,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-05-06 06:06:59,349 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 2.0078125) internal successors, (257), 125 states have internal predecessors, (257), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2021-05-06 06:06:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:06:59,354 INFO L225 Difference]: With dead ends: 10198 [2021-05-06 06:06:59,355 INFO L226 Difference]: Without dead ends: 9993 [2021-05-06 06:06:59,357 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8577 ImplicationChecksByTransitivity, 13646.7ms TimeCoverageRelationStatistics Valid=22289, Invalid=39961, Unknown=0, NotChecked=0, Total=62250 [2021-05-06 06:06:59,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9993 states. [2021-05-06 06:06:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9993 to 9930. [2021-05-06 06:06:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9930 states, 9925 states have (on average 1.0158186397984887) internal successors, (10082), 9925 states have internal predecessors, (10082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:59,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9930 states to 9930 states and 10086 transitions. [2021-05-06 06:06:59,409 INFO L78 Accepts]: Start accepts. Automaton has 9930 states and 10086 transitions. Word has length 255 [2021-05-06 06:06:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:06:59,409 INFO L480 AbstractCegarLoop]: Abstraction has 9930 states and 10086 transitions. [2021-05-06 06:06:59,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 128 states, 128 states have (on average 2.0078125) internal successors, (257), 125 states have internal predecessors, (257), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:06:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9930 states and 10086 transitions. [2021-05-06 06:06:59,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-05-06 06:06:59,417 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:06:59,417 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:06:59,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:06:59,636 INFO L428 AbstractCegarLoop]: === Iteration 123 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:06:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:06:59,636 INFO L82 PathProgramCache]: Analyzing trace with hash -118812884, now seen corresponding path program 21 times [2021-05-06 06:06:59,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:06:59,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212361961] [2021-05-06 06:06:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:06:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10362 backedges. 0 proven. 10362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:05,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:05,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212361961] [2021-05-06 06:07:05,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212361961] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:05,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587037442] [2021-05-06 06:07:05,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:07:05,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-05-06 06:07:05,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:07:05,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 124 conjunts are in the unsatisfiable core [2021-05-06 06:07:05,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:07:05,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 10362 backedges. 0 proven. 10362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:05,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587037442] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:05,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:07:05,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [126, 125] total 129 [2021-05-06 06:07:05,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205974664] [2021-05-06 06:07:05,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 129 states [2021-05-06 06:07:05,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:05,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2021-05-06 06:07:05,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7638, Invalid=8874, Unknown=0, NotChecked=0, Total=16512 [2021-05-06 06:07:05,903 INFO L87 Difference]: Start difference. First operand 9930 states and 10086 transitions. Second operand has 129 states, 129 states have (on average 2.007751937984496) internal successors, (259), 126 states have internal predecessors, (259), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:16,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:07:16,359 INFO L93 Difference]: Finished difference Result 10156 states and 10410 transitions. [2021-05-06 06:07:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-05-06 06:07:16,359 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 129 states have (on average 2.007751937984496) internal successors, (259), 126 states have internal predecessors, (259), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2021-05-06 06:07:16,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:07:16,364 INFO L225 Difference]: With dead ends: 10156 [2021-05-06 06:07:16,364 INFO L226 Difference]: Without dead ends: 9951 [2021-05-06 06:07:16,366 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8709 ImplicationChecksByTransitivity, 13918.5ms TimeCoverageRelationStatistics Valid=22656, Invalid=40596, Unknown=0, NotChecked=0, Total=63252 [2021-05-06 06:07:16,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9951 states. [2021-05-06 06:07:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9951 to 9885. [2021-05-06 06:07:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9885 states, 9880 states have (on average 1.0156882591093117) internal successors, (10035), 9880 states have internal predecessors, (10035), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 10039 transitions. [2021-05-06 06:07:16,412 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 10039 transitions. Word has length 257 [2021-05-06 06:07:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:07:16,414 INFO L480 AbstractCegarLoop]: Abstraction has 9885 states and 10039 transitions. [2021-05-06 06:07:16,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 129 states, 129 states have (on average 2.007751937984496) internal successors, (259), 126 states have internal predecessors, (259), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 10039 transitions. [2021-05-06 06:07:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-05-06 06:07:16,422 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:16,422 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:16,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-05-06 06:07:16,640 INFO L428 AbstractCegarLoop]: === Iteration 124 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:16,640 INFO L82 PathProgramCache]: Analyzing trace with hash 752309008, now seen corresponding path program 22 times [2021-05-06 06:07:16,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:16,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375855080] [2021-05-06 06:07:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:22,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10406 backedges. 0 proven. 10406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:22,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:22,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375855080] [2021-05-06 06:07:22,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375855080] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:22,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148728693] [2021-05-06 06:07:22,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:07:23,087 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 06:07:23,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:07:23,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 125 conjunts are in the unsatisfiable core [2021-05-06 06:07:23,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:07:23,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10406 backedges. 0 proven. 10406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:23,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148728693] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:23,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:07:23,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 126] total 130 [2021-05-06 06:07:23,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352018616] [2021-05-06 06:07:23,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 130 states [2021-05-06 06:07:23,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:23,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-05-06 06:07:23,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7762, Invalid=9008, Unknown=0, NotChecked=0, Total=16770 [2021-05-06 06:07:23,564 INFO L87 Difference]: Start difference. First operand 9885 states and 10039 transitions. Second operand has 130 states, 130 states have (on average 2.0076923076923077) internal successors, (261), 127 states have internal predecessors, (261), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:34,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:07:34,112 INFO L93 Difference]: Finished difference Result 10112 states and 10364 transitions. [2021-05-06 06:07:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-05-06 06:07:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0076923076923077) internal successors, (261), 127 states have internal predecessors, (261), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 259 [2021-05-06 06:07:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:07:34,117 INFO L225 Difference]: With dead ends: 10112 [2021-05-06 06:07:34,117 INFO L226 Difference]: Without dead ends: 9907 [2021-05-06 06:07:34,120 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8842 ImplicationChecksByTransitivity, 14854.5ms TimeCoverageRelationStatistics Valid=23026, Invalid=41236, Unknown=0, NotChecked=0, Total=64262 [2021-05-06 06:07:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9907 states. [2021-05-06 06:07:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9907 to 9838. [2021-05-06 06:07:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9838 states, 9833 states have (on average 1.0155598494864233) internal successors, (9986), 9833 states have internal predecessors, (9986), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9838 states to 9838 states and 9990 transitions. [2021-05-06 06:07:34,162 INFO L78 Accepts]: Start accepts. Automaton has 9838 states and 9990 transitions. Word has length 259 [2021-05-06 06:07:34,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:07:34,162 INFO L480 AbstractCegarLoop]: Abstraction has 9838 states and 9990 transitions. [2021-05-06 06:07:34,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 130 states, 130 states have (on average 2.0076923076923077) internal successors, (261), 127 states have internal predecessors, (261), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9838 states and 9990 transitions. [2021-05-06 06:07:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-05-06 06:07:34,168 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:34,169 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:34,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:07:34,386 INFO L428 AbstractCegarLoop]: === Iteration 125 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:34,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:34,387 INFO L82 PathProgramCache]: Analyzing trace with hash 381824500, now seen corresponding path program 23 times [2021-05-06 06:07:34,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:34,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131629450] [2021-05-06 06:07:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10452 backedges. 0 proven. 10452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:40,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:40,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131629450] [2021-05-06 06:07:40,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131629450] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:40,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981510053] [2021-05-06 06:07:40,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:07:40,860 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 100 check-sat command(s) [2021-05-06 06:07:40,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:07:40,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 126 conjunts are in the unsatisfiable core [2021-05-06 06:07:40,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:07:40,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:40,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10452 backedges. 0 proven. 10452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:41,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981510053] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:41,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:07:41,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 127] total 131 [2021-05-06 06:07:41,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20572111] [2021-05-06 06:07:41,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 131 states [2021-05-06 06:07:41,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:41,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2021-05-06 06:07:41,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7887, Invalid=9143, Unknown=0, NotChecked=0, Total=17030 [2021-05-06 06:07:41,427 INFO L87 Difference]: Start difference. First operand 9838 states and 9990 transitions. Second operand has 131 states, 131 states have (on average 2.0076335877862594) internal successors, (263), 128 states have internal predecessors, (263), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:07:51,350 INFO L93 Difference]: Finished difference Result 10066 states and 10316 transitions. [2021-05-06 06:07:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-05-06 06:07:51,350 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.0076335877862594) internal successors, (263), 128 states have internal predecessors, (263), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 261 [2021-05-06 06:07:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:07:51,355 INFO L225 Difference]: With dead ends: 10066 [2021-05-06 06:07:51,355 INFO L226 Difference]: Without dead ends: 9861 [2021-05-06 06:07:51,358 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8976 ImplicationChecksByTransitivity, 14194.3ms TimeCoverageRelationStatistics Valid=23399, Invalid=41881, Unknown=0, NotChecked=0, Total=65280 [2021-05-06 06:07:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9861 states. [2021-05-06 06:07:51,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9861 to 9789. [2021-05-06 06:07:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9789 states, 9784 states have (on average 1.0154333605887162) internal successors, (9935), 9784 states have internal predecessors, (9935), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9789 states to 9789 states and 9939 transitions. [2021-05-06 06:07:51,414 INFO L78 Accepts]: Start accepts. Automaton has 9789 states and 9939 transitions. Word has length 261 [2021-05-06 06:07:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:07:51,414 INFO L480 AbstractCegarLoop]: Abstraction has 9789 states and 9939 transitions. [2021-05-06 06:07:51,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 131 states, 131 states have (on average 2.0076335877862594) internal successors, (263), 128 states have internal predecessors, (263), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:07:51,415 INFO L276 IsEmpty]: Start isEmpty. Operand 9789 states and 9939 transitions. [2021-05-06 06:07:51,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-05-06 06:07:51,422 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:07:51,422 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 25, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:07:51,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-05-06 06:07:51,642 INFO L428 AbstractCegarLoop]: === Iteration 126 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:07:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:07:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash 828497880, now seen corresponding path program 24 times [2021-05-06 06:07:51,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:07:51,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429100042] [2021-05-06 06:07:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:07:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:57,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:07:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:07:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10500 backedges. 0 proven. 10500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:57,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:07:57,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429100042] [2021-05-06 06:07:57,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429100042] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:57,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392792629] [2021-05-06 06:07:57,221 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:07:57,560 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 100 check-sat command(s) [2021-05-06 06:07:57,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 06:07:57,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 127 conjunts are in the unsatisfiable core [2021-05-06 06:07:57,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:07:57,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:57,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:07:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10500 backedges. 0 proven. 10500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:07:58,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392792629] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:07:58,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:07:58,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 128] total 132 [2021-05-06 06:07:58,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84553997] [2021-05-06 06:07:58,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 132 states [2021-05-06 06:07:58,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:07:58,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2021-05-06 06:07:58,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8013, Invalid=9279, Unknown=0, NotChecked=0, Total=17292 [2021-05-06 06:07:58,140 INFO L87 Difference]: Start difference. First operand 9789 states and 9939 transitions. Second operand has 132 states, 132 states have (on average 2.007575757575758) internal successors, (265), 129 states have internal predecessors, (265), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:08:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:08:09,057 INFO L93 Difference]: Finished difference Result 10018 states and 10266 transitions. [2021-05-06 06:08:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-05-06 06:08:09,057 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 2.007575757575758) internal successors, (265), 129 states have internal predecessors, (265), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2021-05-06 06:08:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:08:09,062 INFO L225 Difference]: With dead ends: 10018 [2021-05-06 06:08:09,062 INFO L226 Difference]: Without dead ends: 9813 [2021-05-06 06:08:09,064 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9111 ImplicationChecksByTransitivity, 14460.7ms TimeCoverageRelationStatistics Valid=23775, Invalid=42531, Unknown=0, NotChecked=0, Total=66306 [2021-05-06 06:08:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9813 states. [2021-05-06 06:08:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9813 to 9738. [2021-05-06 06:08:09,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9738 states, 9733 states have (on average 1.0153087434501182) internal successors, (9882), 9733 states have internal predecessors, (9882), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:08:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9738 states to 9738 states and 9886 transitions. [2021-05-06 06:08:09,110 INFO L78 Accepts]: Start accepts. Automaton has 9738 states and 9886 transitions. Word has length 263 [2021-05-06 06:08:09,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:08:09,110 INFO L480 AbstractCegarLoop]: Abstraction has 9738 states and 9886 transitions. [2021-05-06 06:08:09,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 132 states, 132 states have (on average 2.007575757575758) internal successors, (265), 129 states have internal predecessors, (265), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 06:08:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 9738 states and 9886 transitions. [2021-05-06 06:08:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-05-06 06:08:09,117 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:08:09,117 INFO L523 BasicCegarLoop]: trace histogram [100, 99, 26, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:08:09,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-05-06 06:08:09,333 INFO L428 AbstractCegarLoop]: === Iteration 127 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:08:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:08:09,333 INFO L82 PathProgramCache]: Analyzing trace with hash 584886460, now seen corresponding path program 25 times [2021-05-06 06:08:09,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:08:09,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714156628] [2021-05-06 06:08:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:08:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:15,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:08:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10550 backedges. 0 proven. 10550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:08:15,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:08:15,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714156628] [2021-05-06 06:08:15,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714156628] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:08:15,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569435115] [2021-05-06 06:08:15,831 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 06:08:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:15,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 128 conjunts are in the unsatisfiable core [2021-05-06 06:08:15,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 06:08:15,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:15,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:15,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:15,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 06:08:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 10550 backedges. 0 proven. 10550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:08:16,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569435115] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 06:08:16,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 06:08:16,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 129] total 133 [2021-05-06 06:08:16,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666855877] [2021-05-06 06:08:16,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 133 states [2021-05-06 06:08:16,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:08:16,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2021-05-06 06:08:16,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8140, Invalid=9416, Unknown=0, NotChecked=0, Total=17556 [2021-05-06 06:08:16,475 INFO L87 Difference]: Start difference. First operand 9738 states and 9886 transitions. Second operand has 133 states, 133 states have (on average 2.007518796992481) internal successors, (267), 130 states have internal predecessors, (267), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)