/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-acceleration/functions_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 05:37:42,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 05:37:42,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 05:37:42,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 05:37:42,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 05:37:42,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 05:37:42,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 05:37:42,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 05:37:42,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 05:37:42,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 05:37:42,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 05:37:42,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 05:37:42,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 05:37:42,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 05:37:42,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 05:37:42,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 05:37:42,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 05:37:42,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 05:37:42,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 05:37:42,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 05:37:42,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 05:37:42,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 05:37:42,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 05:37:42,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 05:37:42,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 05:37:42,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 05:37:42,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 05:37:42,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 05:37:42,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 05:37:42,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 05:37:42,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 05:37:42,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 05:37:42,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 05:37:42,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 05:37:42,119 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 05:37:42,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 05:37:42,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 05:37:42,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 05:37:42,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 05:37:42,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 05:37:42,352 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 05:37:42,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-1.c [2021-05-06 05:37:42,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0780e5cb0/2acbb20e43234986976c7278df2ef4ea/FLAG6eb685baf [2021-05-06 05:37:42,759 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 05:37:42,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-1.c [2021-05-06 05:37:42,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0780e5cb0/2acbb20e43234986976c7278df2ef4ea/FLAG6eb685baf [2021-05-06 05:37:42,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0780e5cb0/2acbb20e43234986976c7278df2ef4ea [2021-05-06 05:37:42,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 05:37:42,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 05:37:42,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 05:37:42,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 05:37:42,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 05:37:42,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c58d995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42, skipping insertion in model container [2021-05-06 05:37:42,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 05:37:42,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 05:37:42,911 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-acceleration/functions_1-1.c[325,338] [2021-05-06 05:37:42,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:37:42,924 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 05:37:42,953 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-acceleration/functions_1-1.c[325,338] [2021-05-06 05:37:42,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:37:42,974 INFO L208 MainTranslator]: Completed translation [2021-05-06 05:37:42,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42 WrapperNode [2021-05-06 05:37:42,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 05:37:42,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 05:37:42,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 05:37:42,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 05:37:42,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:42,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:43,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:43,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (1/1) ... [2021-05-06 05:37:43,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 05:37:43,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 05:37:43,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 05:37:43,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 05:37:43,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (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 05:37:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 05:37:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 05:37:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 05:37:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 05:37:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-05-06 05:37:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 05:37:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 05:37:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 05:37:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 05:37:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 05:37:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 05:37:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 05:37:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 05:37:43,271 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 05:37:43,271 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 05:37:43,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:37:43 BoogieIcfgContainer [2021-05-06 05:37:43,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 05:37:43,280 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 05:37:43,280 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 05:37:43,281 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 05:37:43,283 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:37:43" (1/1) ... [2021-05-06 05:37:43,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:37:43 BasicIcfg [2021-05-06 05:37:43,292 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 05:37:43,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 05:37:43,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 05:37:43,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 05:37:43,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 05:37:42" (1/4) ... [2021-05-06 05:37:43,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7cd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:37:43, skipping insertion in model container [2021-05-06 05:37:43,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:37:42" (2/4) ... [2021-05-06 05:37:43,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7cd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:37:43, skipping insertion in model container [2021-05-06 05:37:43,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:37:43" (3/4) ... [2021-05-06 05:37:43,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7cd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 05:37:43, skipping insertion in model container [2021-05-06 05:37:43,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:37:43" (4/4) ... [2021-05-06 05:37:43,296 INFO L111 eAbstractionObserver]: Analyzing ICFG functions_1-1.cJordan [2021-05-06 05:37:43,299 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 05:37:43,302 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 05:37:43,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 05:37:43,323 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 05:37:43,323 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 05:37:43,323 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 05:37:43,323 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 05:37:43,323 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 05:37:43,323 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 05:37:43,323 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 05:37:43,323 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 05:37:43,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 05:37:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 05:37:43,336 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:43,336 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:43,336 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:43,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1565505021, now seen corresponding path program 1 times [2021-05-06 05:37:43,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:43,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432127448] [2021-05-06 05:37:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,548 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 05:37:43,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:43,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432127448] [2021-05-06 05:37:43,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432127448] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:37:43,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:37:43,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 05:37:43,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175336447] [2021-05-06 05:37:43,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 05:37:43,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:43,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 05:37:43,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:37:43,566 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 05:37:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:43,606 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-05-06 05:37:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 05:37:43,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11 [2021-05-06 05:37:43,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:43,612 INFO L225 Difference]: With dead ends: 23 [2021-05-06 05:37:43,612 INFO L226 Difference]: Without dead ends: 17 [2021-05-06 05:37:43,613 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:37:43,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-06 05:37:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-06 05:37:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 05:37:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-05-06 05:37:43,632 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2021-05-06 05:37:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:43,632 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-05-06 05:37:43,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 05:37:43,632 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-05-06 05:37:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 05:37:43,633 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:43,633 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:43,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 05:37:43,633 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:43,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:43,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1564581500, now seen corresponding path program 1 times [2021-05-06 05:37:43,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:43,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111761410] [2021-05-06 05:37:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,716 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 05:37:43,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:43,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111761410] [2021-05-06 05:37:43,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111761410] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:37:43,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:37:43,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 05:37:43,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881955413] [2021-05-06 05:37:43,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 05:37:43,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:43,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 05:37:43,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 05:37:43,719 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 05:37:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:43,780 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-06 05:37:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 05:37:43,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2021-05-06 05:37:43,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:43,781 INFO L225 Difference]: With dead ends: 20 [2021-05-06 05:37:43,781 INFO L226 Difference]: Without dead ends: 20 [2021-05-06 05:37:43,782 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 05:37:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-06 05:37:43,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-05-06 05:37:43,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 05:37:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-06 05:37:43,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-05-06 05:37:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:43,786 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-06 05:37:43,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 05:37:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-06 05:37:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 05:37:43,787 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:43,787 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 05:37:43,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 05:37:43,787 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1890585047, now seen corresponding path program 1 times [2021-05-06 05:37:43,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:43,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155838440] [2021-05-06 05:37:43,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:37:43,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:43,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155838440] [2021-05-06 05:37:43,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155838440] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:43,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339544440] [2021-05-06 05:37:43,935 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 05:37:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:44,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-06 05:37:44,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:44,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:37:44,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339544440] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:44,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:44,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-05-06 05:37:44,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91048643] [2021-05-06 05:37:44,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 05:37:44,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:44,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 05:37:44,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-06 05:37:44,161 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 05:37:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:44,355 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-05-06 05:37:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 05:37:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2021-05-06 05:37:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:44,357 INFO L225 Difference]: With dead ends: 23 [2021-05-06 05:37:44,357 INFO L226 Difference]: Without dead ends: 23 [2021-05-06 05:37:44,358 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 194.8ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-05-06 05:37:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-06 05:37:44,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-05-06 05:37:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 05:37:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-05-06 05:37:44,367 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2021-05-06 05:37:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:44,367 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-05-06 05:37:44,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 05:37:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-05-06 05:37:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-06 05:37:44,369 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:44,369 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:44,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-06 05:37:44,585 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:44,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:44,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1036434190, now seen corresponding path program 2 times [2021-05-06 05:37:44,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:44,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845014174] [2021-05-06 05:37:44,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:44,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:44,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:44,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:44,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-06 05:37:44,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:44,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845014174] [2021-05-06 05:37:44,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845014174] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:44,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525067378] [2021-05-06 05:37:44,761 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 05:37:44,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:37:44,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:44,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-06 05:37:44,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:44,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:44,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:44,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:44,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-06 05:37:44,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525067378] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:44,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:44,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2021-05-06 05:37:44,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334038148] [2021-05-06 05:37:44,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 05:37:44,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:44,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 05:37:44,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-05-06 05:37:44,952 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 05:37:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:45,180 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-05-06 05:37:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 05:37:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2021-05-06 05:37:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:45,181 INFO L225 Difference]: With dead ends: 26 [2021-05-06 05:37:45,181 INFO L226 Difference]: Without dead ends: 26 [2021-05-06 05:37:45,182 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 212.7ms TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:37:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-06 05:37:45,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-05-06 05:37:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 05:37:45,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-05-06 05:37:45,184 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 23 [2021-05-06 05:37:45,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:45,184 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-05-06 05:37:45,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 05:37:45,185 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-05-06 05:37:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 05:37:45,185 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:45,185 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:45,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:45,401 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1393393715, now seen corresponding path program 3 times [2021-05-06 05:37:45,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:45,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197680482] [2021-05-06 05:37:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:45,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:45,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:45,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-05-06 05:37:45,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:45,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197680482] [2021-05-06 05:37:45,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197680482] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:45,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75913944] [2021-05-06 05:37:45,558 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 05:37:45,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-06 05:37:45,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:45,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-06 05:37:45,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:45,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-05-06 05:37:45,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75913944] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:45,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:45,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 12 [2021-05-06 05:37:45,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302875022] [2021-05-06 05:37:45,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 05:37:45,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:45,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 05:37:45,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-05-06 05:37:45,766 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 05:37:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:46,042 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-05-06 05:37:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-06 05:37:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 29 [2021-05-06 05:37:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:46,043 INFO L225 Difference]: With dead ends: 29 [2021-05-06 05:37:46,044 INFO L226 Difference]: Without dead ends: 29 [2021-05-06 05:37:46,044 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 274.3ms TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:37:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-06 05:37:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-05-06 05:37:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 7 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 05:37:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-05-06 05:37:46,046 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 29 [2021-05-06 05:37:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:46,047 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-05-06 05:37:46,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 05:37:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-05-06 05:37:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-06 05:37:46,048 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:46,048 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:46,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:46,265 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1397549672, now seen corresponding path program 4 times [2021-05-06 05:37:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:46,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372072857] [2021-05-06 05:37:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-05-06 05:37:46,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:46,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372072857] [2021-05-06 05:37:46,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372072857] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:46,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969770069] [2021-05-06 05:37:46,417 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 05:37:46,456 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:37:46,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:46,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-06 05:37:46,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:46,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-05-06 05:37:46,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969770069] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:46,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:46,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 16 [2021-05-06 05:37:46,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888080727] [2021-05-06 05:37:46,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 05:37:46,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:46,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 05:37:46,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:37:46,666 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 05:37:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:47,074 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-05-06 05:37:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-06 05:37:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 35 [2021-05-06 05:37:47,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:47,076 INFO L225 Difference]: With dead ends: 32 [2021-05-06 05:37:47,076 INFO L226 Difference]: Without dead ends: 32 [2021-05-06 05:37:47,077 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 424.2ms TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2021-05-06 05:37:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-05-06 05:37:47,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2021-05-06 05:37:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 8 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 05:37:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-05-06 05:37:47,086 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 35 [2021-05-06 05:37:47,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:47,086 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-05-06 05:37:47,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 05:37:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-05-06 05:37:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-06 05:37:47,088 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:47,088 INFO L523 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:47,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:47,293 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:47,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:47,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1441418045, now seen corresponding path program 5 times [2021-05-06 05:37:47,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:47,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818422792] [2021-05-06 05:37:47,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-05-06 05:37:47,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:47,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818422792] [2021-05-06 05:37:47,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818422792] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:47,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124966237] [2021-05-06 05:37:47,469 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 05:37:47,539 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-06 05:37:47,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:47,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-06 05:37:47,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:47,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-05-06 05:37:47,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124966237] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:47,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:47,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 16 [2021-05-06 05:37:47,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075809324] [2021-05-06 05:37:47,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 05:37:47,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:47,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 05:37:47,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:37:47,699 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 05:37:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:48,127 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-05-06 05:37:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-06 05:37:48,127 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 41 [2021-05-06 05:37:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:48,128 INFO L225 Difference]: With dead ends: 35 [2021-05-06 05:37:48,128 INFO L226 Difference]: Without dead ends: 35 [2021-05-06 05:37:48,128 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 423.5ms TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:37:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-06 05:37:48,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-05-06 05:37:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-06 05:37:48,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2021-05-06 05:37:48,131 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 41 [2021-05-06 05:37:48,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:48,132 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-05-06 05:37:48,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 10 states have internal predecessors, (22), 7 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 05:37:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-05-06 05:37:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-06 05:37:48,132 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:48,132 INFO L523 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:48,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:48,350 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:48,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:48,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1131810526, now seen corresponding path program 6 times [2021-05-06 05:37:48,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:48,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927991411] [2021-05-06 05:37:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-05-06 05:37:48,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:48,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927991411] [2021-05-06 05:37:48,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927991411] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:48,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60316084] [2021-05-06 05:37:48,565 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 05:37:48,685 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-06 05:37:48,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:48,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 67 conjunts are in the unsatisfiable core [2021-05-06 05:37:48,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:48,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-05-06 05:37:48,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60316084] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:48,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:48,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 18 [2021-05-06 05:37:48,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548992482] [2021-05-06 05:37:48,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-06 05:37:48,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:48,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-06 05:37:48,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-06 05:37:48,900 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 11 states have internal predecessors, (24), 8 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-06 05:37:49,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:49,471 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-05-06 05:37:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-06 05:37:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 11 states have internal predecessors, (24), 8 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 47 [2021-05-06 05:37:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:49,472 INFO L225 Difference]: With dead ends: 38 [2021-05-06 05:37:49,472 INFO L226 Difference]: Without dead ends: 38 [2021-05-06 05:37:49,473 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 585.0ms TimeCoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:37:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-06 05:37:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-05-06 05:37:49,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 10 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-06 05:37:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-05-06 05:37:49,475 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 47 [2021-05-06 05:37:49,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:49,476 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-05-06 05:37:49,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 11 states have internal predecessors, (24), 8 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-06 05:37:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-05-06 05:37:49,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-06 05:37:49,476 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:49,476 INFO L523 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:49,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:49,696 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:49,696 INFO L82 PathProgramCache]: Analyzing trace with hash 638375751, now seen corresponding path program 7 times [2021-05-06 05:37:49,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:49,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12388993] [2021-05-06 05:37:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:37:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-05-06 05:37:49,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:49,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12388993] [2021-05-06 05:37:49,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12388993] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:49,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668725820] [2021-05-06 05:37:49,944 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 05:37:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:49,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-06 05:37:50,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:50,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-05-06 05:37:50,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668725820] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:50,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:50,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 20 [2021-05-06 05:37:50,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716483922] [2021-05-06 05:37:50,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-06 05:37:50,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:50,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-06 05:37:50,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:37:50,184 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 12 states have internal predecessors, (26), 9 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-06 05:37:50,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:50,856 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2021-05-06 05:37:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-06 05:37:50,857 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 12 states have internal predecessors, (26), 9 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 53 [2021-05-06 05:37:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:50,857 INFO L225 Difference]: With dead ends: 41 [2021-05-06 05:37:50,857 INFO L226 Difference]: Without dead ends: 41 [2021-05-06 05:37:50,858 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 627.9ms TimeCoverageRelationStatistics Valid=138, Invalid=1122, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:37:50,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-06 05:37:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-05-06 05:37:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 11 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-06 05:37:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-05-06 05:37:50,861 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 53 [2021-05-06 05:37:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:50,861 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-05-06 05:37:50,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 12 states have internal predecessors, (26), 9 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-06 05:37:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-05-06 05:37:50,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-06 05:37:50,861 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:50,862 INFO L523 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:51,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-06 05:37:51,077 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:51,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1687276972, now seen corresponding path program 8 times [2021-05-06 05:37:51,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:51,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083632614] [2021-05-06 05:37:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:37:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:37:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-05-06 05:37:51,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:51,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083632614] [2021-05-06 05:37:51,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083632614] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:51,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727292092] [2021-05-06 05:37:51,390 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 05:37:51,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:37:51,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:51,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-06 05:37:51,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:51,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:51,708 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-05-06 05:37:51,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727292092] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:51,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:51,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 22 [2021-05-06 05:37:51,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145955844] [2021-05-06 05:37:51,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-06 05:37:51,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:51,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-06 05:37:51,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-05-06 05:37:51,711 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 13 states have internal predecessors, (28), 10 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-06 05:37:52,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:52,501 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2021-05-06 05:37:52,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-06 05:37:52,502 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 13 states have internal predecessors, (28), 10 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 59 [2021-05-06 05:37:52,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:52,503 INFO L225 Difference]: With dead ends: 44 [2021-05-06 05:37:52,503 INFO L226 Difference]: Without dead ends: 44 [2021-05-06 05:37:52,504 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 787.7ms TimeCoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:37:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-05-06 05:37:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2021-05-06 05:37:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 12 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-06 05:37:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-05-06 05:37:52,508 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 59 [2021-05-06 05:37:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:52,508 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-05-06 05:37:52,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 13 states have internal predecessors, (28), 10 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-05-06 05:37:52,508 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-05-06 05:37:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-06 05:37:52,509 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:52,509 INFO L523 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:52,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-05-06 05:37:52,713 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:52,714 INFO L82 PathProgramCache]: Analyzing trace with hash -874797999, now seen corresponding path program 9 times [2021-05-06 05:37:52,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:52,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702695499] [2021-05-06 05:37:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:52,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:52,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:37:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:37:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:37:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-05-06 05:37:53,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:53,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702695499] [2021-05-06 05:37:53,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702695499] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:53,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568094661] [2021-05-06 05:37:53,091 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 05:37:53,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-06 05:37:53,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:53,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 93 conjunts are in the unsatisfiable core [2021-05-06 05:37:53,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:53,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-05-06 05:37:53,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568094661] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:53,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:53,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 24 [2021-05-06 05:37:53,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629439941] [2021-05-06 05:37:53,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-06 05:37:53,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:53,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-06 05:37:53,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-05-06 05:37:53,653 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 14 states have internal predecessors, (30), 11 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-06 05:37:54,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:54,611 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-05-06 05:37:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-06 05:37:54,612 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 14 states have internal predecessors, (30), 11 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 65 [2021-05-06 05:37:54,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:54,613 INFO L225 Difference]: With dead ends: 47 [2021-05-06 05:37:54,613 INFO L226 Difference]: Without dead ends: 47 [2021-05-06 05:37:54,613 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 75 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 973.5ms TimeCoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:37:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-06 05:37:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-05-06 05:37:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-06 05:37:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2021-05-06 05:37:54,618 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 65 [2021-05-06 05:37:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:54,618 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-05-06 05:37:54,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 14 states have internal predecessors, (30), 11 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-05-06 05:37:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2021-05-06 05:37:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-06 05:37:54,619 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:54,619 INFO L523 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:54,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:54,824 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1716595510, now seen corresponding path program 10 times [2021-05-06 05:37:54,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:54,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160451581] [2021-05-06 05:37:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:37:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:37:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:37:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:37:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-05-06 05:37:55,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:55,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160451581] [2021-05-06 05:37:55,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160451581] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:55,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216092821] [2021-05-06 05:37:55,244 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 05:37:55,284 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:37:55,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:55,286 WARN L261 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 105 conjunts are in the unsatisfiable core [2021-05-06 05:37:55,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:55,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-05-06 05:37:55,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216092821] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:55,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:55,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 28 [2021-05-06 05:37:55,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484851508] [2021-05-06 05:37:55,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 05:37:55,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 05:37:55,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:37:55,651 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-06 05:37:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:56,766 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2021-05-06 05:37:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-06 05:37:56,766 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 71 [2021-05-06 05:37:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:56,767 INFO L225 Difference]: With dead ends: 50 [2021-05-06 05:37:56,767 INFO L226 Difference]: Without dead ends: 50 [2021-05-06 05:37:56,768 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 80 SyntacticMatches, 10 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1187.9ms TimeCoverageRelationStatistics Valid=193, Invalid=2257, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 05:37:56,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-05-06 05:37:56,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-05-06 05:37:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 14 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-06 05:37:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2021-05-06 05:37:56,770 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 71 [2021-05-06 05:37:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:56,771 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2021-05-06 05:37:56,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-06 05:37:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2021-05-06 05:37:56,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-05-06 05:37:56,772 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:56,772 INFO L523 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:56,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:37:56,977 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:56,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:56,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1778201179, now seen corresponding path program 11 times [2021-05-06 05:37:56,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:56,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940248670] [2021-05-06 05:37:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:37:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:37:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:37:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:37:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:37:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:37:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:37:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:37:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:37:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:37:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:37:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:37:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:37:57,384 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-05-06 05:37:57,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:37:57,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940248670] [2021-05-06 05:37:57,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940248670] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:57,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141496115] [2021-05-06 05:37:57,385 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 05:37:57,962 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-06 05:37:57,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:37:57,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 113 conjunts are in the unsatisfiable core [2021-05-06 05:37:57,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:37:58,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:37:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-05-06 05:37:58,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141496115] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:37:58,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:37:58,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 28 [2021-05-06 05:37:58,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250587055] [2021-05-06 05:37:58,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 05:37:58,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:37:58,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 05:37:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:37:58,439 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-06 05:37:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:37:59,631 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2021-05-06 05:37:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-06 05:37:59,631 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 77 [2021-05-06 05:37:59,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:37:59,632 INFO L225 Difference]: With dead ends: 53 [2021-05-06 05:37:59,632 INFO L226 Difference]: Without dead ends: 53 [2021-05-06 05:37:59,633 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 89 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1275.4ms TimeCoverageRelationStatistics Valid=206, Invalid=2446, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:37:59,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-06 05:37:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2021-05-06 05:37:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-06 05:37:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-05-06 05:37:59,637 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 77 [2021-05-06 05:37:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:37:59,637 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-05-06 05:37:59,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 16 states have internal predecessors, (34), 13 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-05-06 05:37:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-05-06 05:37:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-06 05:37:59,638 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:37:59,638 INFO L523 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:37:59,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-05-06 05:37:59,855 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:37:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:37:59,856 INFO L82 PathProgramCache]: Analyzing trace with hash -309425728, now seen corresponding path program 12 times [2021-05-06 05:37:59,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:37:59,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210507211] [2021-05-06 05:37:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:37:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-05-06 05:38:00,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:00,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210507211] [2021-05-06 05:38:00,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210507211] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:00,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490026139] [2021-05-06 05:38:00,401 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 05:38:00,805 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-06 05:38:00,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:00,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 125 conjunts are in the unsatisfiable core [2021-05-06 05:38:00,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:00,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:00,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-05-06 05:38:01,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490026139] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:01,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:01,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30] total 32 [2021-05-06 05:38:01,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977849633] [2021-05-06 05:38:01,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 05:38:01,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:01,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 05:38:01,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:38:01,259 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-06 05:38:02,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:02,454 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2021-05-06 05:38:02,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-06 05:38:02,455 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 83 [2021-05-06 05:38:02,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:02,455 INFO L225 Difference]: With dead ends: 56 [2021-05-06 05:38:02,455 INFO L226 Difference]: Without dead ends: 56 [2021-05-06 05:38:02,456 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 94 SyntacticMatches, 12 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1392.0ms TimeCoverageRelationStatistics Valid=227, Invalid=3079, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 05:38:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-05-06 05:38:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-05-06 05:38:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 16 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-06 05:38:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2021-05-06 05:38:02,459 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 83 [2021-05-06 05:38:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:02,459 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2021-05-06 05:38:02,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-06 05:38:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2021-05-06 05:38:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-06 05:38:02,460 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:02,460 INFO L523 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:02,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-06 05:38:02,665 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:02,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:02,666 INFO L82 PathProgramCache]: Analyzing trace with hash -581435035, now seen corresponding path program 13 times [2021-05-06 05:38:02,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:02,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016908682] [2021-05-06 05:38:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-05-06 05:38:03,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:03,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016908682] [2021-05-06 05:38:03,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016908682] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:03,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025635806] [2021-05-06 05:38:03,123 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 05:38:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:03,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 133 conjunts are in the unsatisfiable core [2021-05-06 05:38:03,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:03,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-05-06 05:38:03,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025635806] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:03,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:03,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 32 [2021-05-06 05:38:03,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167558571] [2021-05-06 05:38:03,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 05:38:03,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:03,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 05:38:03,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:38:03,659 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-06 05:38:04,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:04,900 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2021-05-06 05:38:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-06 05:38:04,901 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 89 [2021-05-06 05:38:04,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:04,902 INFO L225 Difference]: With dead ends: 59 [2021-05-06 05:38:04,902 INFO L226 Difference]: Without dead ends: 59 [2021-05-06 05:38:04,902 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 103 SyntacticMatches, 13 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1412.5ms TimeCoverageRelationStatistics Valid=240, Invalid=3300, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 05:38:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-06 05:38:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2021-05-06 05:38:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 17 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-06 05:38:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2021-05-06 05:38:04,905 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 89 [2021-05-06 05:38:04,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:04,906 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2021-05-06 05:38:04,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.1875) internal successors, (38), 18 states have internal predecessors, (38), 15 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-05-06 05:38:04,906 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2021-05-06 05:38:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-06 05:38:04,906 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:04,906 INFO L523 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:05,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-06 05:38:05,126 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:05,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:05,126 INFO L82 PathProgramCache]: Analyzing trace with hash 810576202, now seen corresponding path program 14 times [2021-05-06 05:38:05,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:05,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316970670] [2021-05-06 05:38:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-05-06 05:38:05,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:05,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316970670] [2021-05-06 05:38:05,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316970670] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:05,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426631573] [2021-05-06 05:38:05,648 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 05:38:05,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:05,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:05,705 WARN L261 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 143 conjunts are in the unsatisfiable core [2021-05-06 05:38:05,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:05,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:05,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-05-06 05:38:06,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426631573] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:06,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:06,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 34 [2021-05-06 05:38:06,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174045445] [2021-05-06 05:38:06,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-06 05:38:06,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:06,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-06 05:38:06,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 05:38:06,287 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 34 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 19 states have internal predecessors, (40), 16 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-06 05:38:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:07,724 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2021-05-06 05:38:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-06 05:38:07,725 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 19 states have internal predecessors, (40), 16 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 95 [2021-05-06 05:38:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:07,726 INFO L225 Difference]: With dead ends: 62 [2021-05-06 05:38:07,726 INFO L226 Difference]: Without dead ends: 62 [2021-05-06 05:38:07,726 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 110 SyntacticMatches, 14 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1676.9ms TimeCoverageRelationStatistics Valid=257, Invalid=3775, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:38:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-05-06 05:38:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2021-05-06 05:38:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 18 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-06 05:38:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2021-05-06 05:38:07,731 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 95 [2021-05-06 05:38:07,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:07,731 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2021-05-06 05:38:07,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 19 states have internal predecessors, (40), 16 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-05-06 05:38:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2021-05-06 05:38:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-05-06 05:38:07,732 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:07,732 INFO L523 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:07,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:07,957 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:07,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1561497967, now seen corresponding path program 15 times [2021-05-06 05:38:07,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:07,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645807952] [2021-05-06 05:38:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-05-06 05:38:08,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:08,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645807952] [2021-05-06 05:38:08,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645807952] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:08,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430654859] [2021-05-06 05:38:08,537 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 05:38:08,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-05-06 05:38:08,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:08,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 153 conjunts are in the unsatisfiable core [2021-05-06 05:38:08,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:08,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2021-05-06 05:38:09,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430654859] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:09,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:09,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 36 [2021-05-06 05:38:09,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429812796] [2021-05-06 05:38:09,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-06 05:38:09,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:09,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-06 05:38:09,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:38:09,474 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 20 states have internal predecessors, (42), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-06 05:38:11,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:11,057 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2021-05-06 05:38:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-06 05:38:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 20 states have internal predecessors, (42), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 101 [2021-05-06 05:38:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:11,058 INFO L225 Difference]: With dead ends: 65 [2021-05-06 05:38:11,058 INFO L226 Difference]: Without dead ends: 65 [2021-05-06 05:38:11,059 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 117 SyntacticMatches, 15 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1840.2ms TimeCoverageRelationStatistics Valid=274, Invalid=4282, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:38:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-06 05:38:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-05-06 05:38:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-06 05:38:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2021-05-06 05:38:11,061 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 101 [2021-05-06 05:38:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:11,061 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2021-05-06 05:38:11,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 20 states have internal predecessors, (42), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-05-06 05:38:11,062 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2021-05-06 05:38:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-06 05:38:11,062 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:11,062 INFO L523 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:11,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:11,269 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:11,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:11,269 INFO L82 PathProgramCache]: Analyzing trace with hash 249383380, now seen corresponding path program 16 times [2021-05-06 05:38:11,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:11,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182208190] [2021-05-06 05:38:11,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-05-06 05:38:11,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:11,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182208190] [2021-05-06 05:38:11,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182208190] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:11,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251992343] [2021-05-06 05:38:11,854 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 05:38:11,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:38:11,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:11,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 165 conjunts are in the unsatisfiable core [2021-05-06 05:38:11,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:11,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-05-06 05:38:12,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251992343] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:12,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:12,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 38] total 40 [2021-05-06 05:38:12,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611666732] [2021-05-06 05:38:12,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 05:38:12,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:12,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 05:38:12,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:38:12,625 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-06 05:38:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:14,411 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-05-06 05:38:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-06 05:38:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 107 [2021-05-06 05:38:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:14,412 INFO L225 Difference]: With dead ends: 68 [2021-05-06 05:38:14,412 INFO L226 Difference]: Without dead ends: 68 [2021-05-06 05:38:14,413 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 122 SyntacticMatches, 16 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2006.2ms TimeCoverageRelationStatistics Valid=295, Invalid=5107, Unknown=0, NotChecked=0, Total=5402 [2021-05-06 05:38:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-05-06 05:38:14,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-05-06 05:38:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 20 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-06 05:38:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions. [2021-05-06 05:38:14,424 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 107 [2021-05-06 05:38:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:14,424 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions. [2021-05-06 05:38:14,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-06 05:38:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2021-05-06 05:38:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-06 05:38:14,425 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:14,425 INFO L523 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:14,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:14,629 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:14,629 INFO L82 PathProgramCache]: Analyzing trace with hash 445866617, now seen corresponding path program 17 times [2021-05-06 05:38:14,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:14,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281579233] [2021-05-06 05:38:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-05-06 05:38:15,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:15,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281579233] [2021-05-06 05:38:15,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281579233] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:15,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356884315] [2021-05-06 05:38:15,318 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 05:38:17,076 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-05-06 05:38:17,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:17,091 WARN L261 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 184 conjunts are in the unsatisfiable core [2021-05-06 05:38:17,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:17,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-05-06 05:38:17,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356884315] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:17,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:17,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 40 [2021-05-06 05:38:17,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264866348] [2021-05-06 05:38:17,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 05:38:17,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:17,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 05:38:17,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1465, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:38:17,893 INFO L87 Difference]: Start difference. First operand 66 states and 82 transitions. Second operand has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-06 05:38:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:19,801 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2021-05-06 05:38:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-06 05:38:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 113 [2021-05-06 05:38:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:19,802 INFO L225 Difference]: With dead ends: 71 [2021-05-06 05:38:19,802 INFO L226 Difference]: Without dead ends: 71 [2021-05-06 05:38:19,803 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 120 SyntacticMatches, 28 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 2274.4ms TimeCoverageRelationStatistics Valid=308, Invalid=5392, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:38:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-05-06 05:38:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-05-06 05:38:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 21 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-06 05:38:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-05-06 05:38:19,806 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 113 [2021-05-06 05:38:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:19,806 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-05-06 05:38:19,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.15) internal successors, (46), 22 states have internal predecessors, (46), 19 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-05-06 05:38:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-05-06 05:38:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-06 05:38:19,807 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:19,807 INFO L523 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:20,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-05-06 05:38:20,014 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:20,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1279546530, now seen corresponding path program 18 times [2021-05-06 05:38:20,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:20,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188074949] [2021-05-06 05:38:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 477 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-05-06 05:38:20,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:20,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188074949] [2021-05-06 05:38:20,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188074949] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:20,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055443472] [2021-05-06 05:38:20,812 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 05:38:21,890 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-05-06 05:38:21,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:21,899 WARN L261 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 193 conjunts are in the unsatisfiable core [2021-05-06 05:38:21,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:21,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:21,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:21,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:21,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:21,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 0 proven. 477 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-05-06 05:38:22,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055443472] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:22,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:22,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 42 [2021-05-06 05:38:22,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826375030] [2021-05-06 05:38:22,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-06 05:38:22,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:22,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-06 05:38:22,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1622, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 05:38:22,781 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 42 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 23 states have internal predecessors, (48), 20 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-06 05:38:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:24,865 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2021-05-06 05:38:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-06 05:38:24,866 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 23 states have internal predecessors, (48), 20 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 119 [2021-05-06 05:38:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:24,866 INFO L225 Difference]: With dead ends: 74 [2021-05-06 05:38:24,866 INFO L226 Difference]: Without dead ends: 74 [2021-05-06 05:38:24,868 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 128 SyntacticMatches, 28 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 2517.2ms TimeCoverageRelationStatistics Valid=325, Invalid=5995, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:38:24,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-05-06 05:38:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-05-06 05:38:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 22 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-06 05:38:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2021-05-06 05:38:24,870 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 119 [2021-05-06 05:38:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:24,870 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2021-05-06 05:38:24,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 23 states have internal predecessors, (48), 20 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-05-06 05:38:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2021-05-06 05:38:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-05-06 05:38:24,871 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:24,871 INFO L523 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:25,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-05-06 05:38:25,079 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:25,079 INFO L82 PathProgramCache]: Analyzing trace with hash -511642493, now seen corresponding path program 19 times [2021-05-06 05:38:25,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:25,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535862525] [2021-05-06 05:38:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-05-06 05:38:25,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:25,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535862525] [2021-05-06 05:38:25,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535862525] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:25,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108354069] [2021-05-06 05:38:25,905 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 05:38:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:25,973 WARN L261 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 193 conjunts are in the unsatisfiable core [2021-05-06 05:38:25,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:26,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-05-06 05:38:26,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108354069] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:26,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:26,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 44 [2021-05-06 05:38:26,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769166316] [2021-05-06 05:38:26,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-06 05:38:26,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:26,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-06 05:38:26,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1787, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:38:26,750 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand has 44 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 24 states have internal predecessors, (50), 21 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-06 05:38:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:28,942 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2021-05-06 05:38:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-06 05:38:28,942 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 24 states have internal predecessors, (50), 21 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 125 [2021-05-06 05:38:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:28,943 INFO L225 Difference]: With dead ends: 77 [2021-05-06 05:38:28,943 INFO L226 Difference]: Without dead ends: 77 [2021-05-06 05:38:28,945 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 145 SyntacticMatches, 19 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 2536.8ms TimeCoverageRelationStatistics Valid=342, Invalid=6630, Unknown=0, NotChecked=0, Total=6972 [2021-05-06 05:38:28,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-06 05:38:28,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2021-05-06 05:38:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 49 states have internal predecessors, (50), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-06 05:38:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 94 transitions. [2021-05-06 05:38:28,947 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 94 transitions. Word has length 125 [2021-05-06 05:38:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:28,948 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 94 transitions. [2021-05-06 05:38:28,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 24 states have internal predecessors, (50), 21 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-05-06 05:38:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 94 transitions. [2021-05-06 05:38:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-06 05:38:28,948 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:28,949 INFO L523 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:29,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-05-06 05:38:29,149 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:29,149 INFO L82 PathProgramCache]: Analyzing trace with hash 867306984, now seen corresponding path program 20 times [2021-05-06 05:38:29,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:29,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966116312] [2021-05-06 05:38:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:29,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-05-06 05:38:30,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:30,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966116312] [2021-05-06 05:38:30,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966116312] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:30,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516025436] [2021-05-06 05:38:30,021 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 05:38:30,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:30,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:30,116 WARN L261 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 203 conjunts are in the unsatisfiable core [2021-05-06 05:38:30,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:30,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2021-05-06 05:38:30,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516025436] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:30,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:30,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44] total 46 [2021-05-06 05:38:30,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908697520] [2021-05-06 05:38:30,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-06 05:38:30,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:30,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-06 05:38:30,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1960, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 05:38:30,907 INFO L87 Difference]: Start difference. First operand 75 states and 94 transitions. Second operand has 46 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 25 states have internal predecessors, (52), 22 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-06 05:38:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:33,247 INFO L93 Difference]: Finished difference Result 80 states and 101 transitions. [2021-05-06 05:38:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-06 05:38:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 25 states have internal predecessors, (52), 22 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 131 [2021-05-06 05:38:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:33,248 INFO L225 Difference]: With dead ends: 80 [2021-05-06 05:38:33,248 INFO L226 Difference]: Without dead ends: 80 [2021-05-06 05:38:33,249 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 152 SyntacticMatches, 20 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 2666.2ms TimeCoverageRelationStatistics Valid=359, Invalid=7297, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:38:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-05-06 05:38:33,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-05-06 05:38:33,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-06 05:38:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 98 transitions. [2021-05-06 05:38:33,251 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 98 transitions. Word has length 131 [2021-05-06 05:38:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:33,251 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 98 transitions. [2021-05-06 05:38:33,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 25 states have internal predecessors, (52), 22 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-05-06 05:38:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 98 transitions. [2021-05-06 05:38:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-06 05:38:33,252 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:33,252 INFO L523 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:33,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-05-06 05:38:33,461 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:33,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1212037235, now seen corresponding path program 21 times [2021-05-06 05:38:33,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:33,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474355322] [2021-05-06 05:38:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:38:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-05-06 05:38:34,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:34,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474355322] [2021-05-06 05:38:34,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474355322] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:34,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120674429] [2021-05-06 05:38:34,401 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 05:38:35,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-05-06 05:38:35,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:35,278 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 215 conjunts are in the unsatisfiable core [2021-05-06 05:38:35,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:35,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-05-06 05:38:36,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120674429] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:36,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:36,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 48] total 50 [2021-05-06 05:38:36,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745806025] [2021-05-06 05:38:36,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-06 05:38:36,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:36,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-06 05:38:36,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=2331, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 05:38:36,244 INFO L87 Difference]: Start difference. First operand 78 states and 98 transitions. Second operand has 50 states, 50 states have (on average 1.12) internal successors, (56), 27 states have internal predecessors, (56), 24 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-06 05:38:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:38,931 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-05-06 05:38:38,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 05:38:38,931 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.12) internal successors, (56), 27 states have internal predecessors, (56), 24 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 137 [2021-05-06 05:38:38,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:38,932 INFO L225 Difference]: With dead ends: 83 [2021-05-06 05:38:38,932 INFO L226 Difference]: Without dead ends: 83 [2021-05-06 05:38:38,932 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 157 SyntacticMatches, 21 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 3111.3ms TimeCoverageRelationStatistics Valid=380, Invalid=8362, Unknown=0, NotChecked=0, Total=8742 [2021-05-06 05:38:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-06 05:38:38,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2021-05-06 05:38:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-06 05:38:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2021-05-06 05:38:38,935 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 137 [2021-05-06 05:38:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:38,935 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2021-05-06 05:38:38,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 1.12) internal successors, (56), 27 states have internal predecessors, (56), 24 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-06 05:38:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2021-05-06 05:38:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-06 05:38:38,936 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:38,936 INFO L523 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:39,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-06 05:38:39,153 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:39,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:39,153 INFO L82 PathProgramCache]: Analyzing trace with hash 768012658, now seen corresponding path program 22 times [2021-05-06 05:38:39,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:39,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23113054] [2021-05-06 05:38:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:38:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:38:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-05-06 05:38:40,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:40,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23113054] [2021-05-06 05:38:40,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23113054] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:40,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418420072] [2021-05-06 05:38:40,188 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 05:38:40,269 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:38:40,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:40,272 WARN L261 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 225 conjunts are in the unsatisfiable core [2021-05-06 05:38:40,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:40,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:40,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-05-06 05:38:41,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418420072] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:41,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:41,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50] total 52 [2021-05-06 05:38:41,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361467512] [2021-05-06 05:38:41,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-06 05:38:41,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:41,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-06 05:38:41,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2528, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:38:41,307 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-06 05:38:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:44,095 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2021-05-06 05:38:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-06 05:38:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 143 [2021-05-06 05:38:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:44,097 INFO L225 Difference]: With dead ends: 86 [2021-05-06 05:38:44,097 INFO L226 Difference]: Without dead ends: 86 [2021-05-06 05:38:44,097 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 164 SyntacticMatches, 22 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 3269.1ms TimeCoverageRelationStatistics Valid=397, Invalid=9109, Unknown=0, NotChecked=0, Total=9506 [2021-05-06 05:38:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-05-06 05:38:44,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2021-05-06 05:38:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 26 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-06 05:38:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 106 transitions. [2021-05-06 05:38:44,100 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 106 transitions. Word has length 143 [2021-05-06 05:38:44,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:44,100 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 106 transitions. [2021-05-06 05:38:44,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-06 05:38:44,100 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 106 transitions. [2021-05-06 05:38:44,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-05-06 05:38:44,101 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:44,101 INFO L523 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:44,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:44,307 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:44,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2105301911, now seen corresponding path program 23 times [2021-05-06 05:38:44,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:44,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019040497] [2021-05-06 05:38:44,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:38:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:38:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:38:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 0 proven. 782 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2021-05-06 05:38:45,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:45,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019040497] [2021-05-06 05:38:45,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019040497] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:45,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58094361] [2021-05-06 05:38:45,349 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 05:38:50,033 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-05-06 05:38:50,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:50,038 WARN L261 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 249 conjunts are in the unsatisfiable core [2021-05-06 05:38:50,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:50,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 0 proven. 782 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2021-05-06 05:38:51,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58094361] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:51,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:51,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50] total 52 [2021-05-06 05:38:51,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884373701] [2021-05-06 05:38:51,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-06 05:38:51,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:51,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-06 05:38:51,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:38:51,407 INFO L87 Difference]: Start difference. First operand 84 states and 106 transitions. Second operand has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-06 05:38:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:54,298 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2021-05-06 05:38:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-06 05:38:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 149 [2021-05-06 05:38:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:54,299 INFO L225 Difference]: With dead ends: 89 [2021-05-06 05:38:54,299 INFO L226 Difference]: Without dead ends: 89 [2021-05-06 05:38:54,299 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 157 SyntacticMatches, 39 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1163 ImplicationChecksByTransitivity, 3682.9ms TimeCoverageRelationStatistics Valid=410, Invalid=9490, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:38:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-06 05:38:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-05-06 05:38:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-06 05:38:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2021-05-06 05:38:54,302 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 149 [2021-05-06 05:38:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:54,302 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2021-05-06 05:38:54,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 28 states have internal predecessors, (58), 25 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-05-06 05:38:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2021-05-06 05:38:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-05-06 05:38:54,303 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:54,303 INFO L523 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:54,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-05-06 05:38:54,509 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:54,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:54,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1799411196, now seen corresponding path program 24 times [2021-05-06 05:38:54,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:54,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135106886] [2021-05-06 05:38:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:38:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:38:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:38:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:38:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-05-06 05:38:55,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:55,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135106886] [2021-05-06 05:38:55,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135106886] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:55,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433901650] [2021-05-06 05:38:55,637 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 05:38:56,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-05-06 05:38:56,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:56,961 WARN L261 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 245 conjunts are in the unsatisfiable core [2021-05-06 05:38:56,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:57,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:57,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-05-06 05:38:58,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433901650] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:58,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:58,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 54] total 56 [2021-05-06 05:38:58,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713307608] [2021-05-06 05:38:58,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-06 05:38:58,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:58,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-06 05:38:58,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2946, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:38:58,136 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-06 05:39:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:01,468 INFO L93 Difference]: Finished difference Result 92 states and 117 transitions. [2021-05-06 05:39:01,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-06 05:39:01,469 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 155 [2021-05-06 05:39:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:01,470 INFO L225 Difference]: With dead ends: 92 [2021-05-06 05:39:01,470 INFO L226 Difference]: Without dead ends: 92 [2021-05-06 05:39:01,471 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 178 SyntacticMatches, 24 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1233 ImplicationChecksByTransitivity, 3794.2ms TimeCoverageRelationStatistics Valid=431, Invalid=10699, Unknown=0, NotChecked=0, Total=11130 [2021-05-06 05:39:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-05-06 05:39:01,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-05-06 05:39:01,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 59 states have internal predecessors, (60), 28 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-06 05:39:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 114 transitions. [2021-05-06 05:39:01,474 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 114 transitions. Word has length 155 [2021-05-06 05:39:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:01,474 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 114 transitions. [2021-05-06 05:39:01,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-06 05:39:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 114 transitions. [2021-05-06 05:39:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-06 05:39:01,475 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:01,475 INFO L523 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:01,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:39:01,681 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:01,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:01,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1927860063, now seen corresponding path program 25 times [2021-05-06 05:39:01,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:01,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267349377] [2021-05-06 05:39:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1825 backedges. 0 proven. 925 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-05-06 05:39:02,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:02,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267349377] [2021-05-06 05:39:02,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267349377] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:02,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299050389] [2021-05-06 05:39:02,952 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 05:39:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:03,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 253 conjunts are in the unsatisfiable core [2021-05-06 05:39:03,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:03,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:03,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1825 backedges. 0 proven. 925 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-05-06 05:39:04,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299050389] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:04,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:04,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54] total 56 [2021-05-06 05:39:04,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064520711] [2021-05-06 05:39:04,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-06 05:39:04,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-06 05:39:04,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2945, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:39:04,319 INFO L87 Difference]: Start difference. First operand 90 states and 114 transitions. Second operand has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-06 05:39:07,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:07,746 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2021-05-06 05:39:07,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-06 05:39:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 161 [2021-05-06 05:39:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:07,748 INFO L225 Difference]: With dead ends: 95 [2021-05-06 05:39:07,748 INFO L226 Difference]: Without dead ends: 95 [2021-05-06 05:39:07,748 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 187 SyntacticMatches, 25 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 4023.7ms TimeCoverageRelationStatistics Valid=444, Invalid=11112, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 05:39:07,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-05-06 05:39:07,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-05-06 05:39:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.0163934426229508) internal successors, (62), 61 states have internal predecessors, (62), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-06 05:39:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2021-05-06 05:39:07,751 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 161 [2021-05-06 05:39:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:07,751 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2021-05-06 05:39:07,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 30 states have internal predecessors, (62), 27 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-05-06 05:39:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2021-05-06 05:39:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-06 05:39:07,752 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:07,752 INFO L523 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:07,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-05-06 05:39:07,969 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:07,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:07,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2141600646, now seen corresponding path program 26 times [2021-05-06 05:39:07,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:07,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295589886] [2021-05-06 05:39:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 0 proven. 1001 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2021-05-06 05:39:09,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:09,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295589886] [2021-05-06 05:39:09,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295589886] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:09,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546130257] [2021-05-06 05:39:09,219 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 05:39:09,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:39:09,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:09,301 WARN L261 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 263 conjunts are in the unsatisfiable core [2021-05-06 05:39:09,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:09,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:09,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1976 backedges. 0 proven. 1001 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2021-05-06 05:39:10,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546130257] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:10,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:10,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56] total 58 [2021-05-06 05:39:10,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82962621] [2021-05-06 05:39:10,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-06 05:39:10,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:10,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-06 05:39:10,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=3166, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 05:39:10,541 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 58 states, 58 states have (on average 1.103448275862069) internal successors, (64), 31 states have internal predecessors, (64), 28 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-06 05:39:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:14,071 INFO L93 Difference]: Finished difference Result 98 states and 125 transitions. [2021-05-06 05:39:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-06 05:39:14,071 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.103448275862069) internal successors, (64), 31 states have internal predecessors, (64), 28 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 167 [2021-05-06 05:39:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:14,072 INFO L225 Difference]: With dead ends: 98 [2021-05-06 05:39:14,072 INFO L226 Difference]: Without dead ends: 98 [2021-05-06 05:39:14,073 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 194 SyntacticMatches, 26 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 4098.6ms TimeCoverageRelationStatistics Valid=461, Invalid=11971, Unknown=0, NotChecked=0, Total=12432 [2021-05-06 05:39:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-05-06 05:39:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-05-06 05:39:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.0158730158730158) internal successors, (64), 63 states have internal predecessors, (64), 30 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-06 05:39:14,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 122 transitions. [2021-05-06 05:39:14,075 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 122 transitions. Word has length 167 [2021-05-06 05:39:14,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:14,075 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 122 transitions. [2021-05-06 05:39:14,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 1.103448275862069) internal successors, (64), 31 states have internal predecessors, (64), 28 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-05-06 05:39:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 122 transitions. [2021-05-06 05:39:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-05-06 05:39:14,076 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:14,076 INFO L523 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:14,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-06 05:39:14,285 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:14,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1530447531, now seen corresponding path program 27 times [2021-05-06 05:39:14,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:14,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750053058] [2021-05-06 05:39:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:39:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2133 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-05-06 05:39:15,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:15,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750053058] [2021-05-06 05:39:15,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750053058] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:15,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560376898] [2021-05-06 05:39:15,631 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 05:39:17,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-05-06 05:39:17,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:17,838 WARN L261 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 275 conjunts are in the unsatisfiable core [2021-05-06 05:39:17,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:17,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:17,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:18,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2133 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-05-06 05:39:19,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560376898] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:19,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:19,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 60] total 62 [2021-05-06 05:39:19,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183014966] [2021-05-06 05:39:19,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-06 05:39:19,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:19,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-06 05:39:19,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=3633, Unknown=0, NotChecked=0, Total=3782 [2021-05-06 05:39:19,255 INFO L87 Difference]: Start difference. First operand 96 states and 122 transitions. Second operand has 62 states, 62 states have (on average 1.096774193548387) internal successors, (68), 33 states have internal predecessors, (68), 30 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-06 05:39:23,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:23,084 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2021-05-06 05:39:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-06 05:39:23,084 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 1.096774193548387) internal successors, (68), 33 states have internal predecessors, (68), 30 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 173 [2021-05-06 05:39:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:23,085 INFO L225 Difference]: With dead ends: 101 [2021-05-06 05:39:23,085 INFO L226 Difference]: Without dead ends: 101 [2021-05-06 05:39:23,086 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 199 SyntacticMatches, 27 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1548 ImplicationChecksByTransitivity, 4505.6ms TimeCoverageRelationStatistics Valid=482, Invalid=13324, Unknown=0, NotChecked=0, Total=13806 [2021-05-06 05:39:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-05-06 05:39:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-05-06 05:39:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 31 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-06 05:39:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2021-05-06 05:39:23,088 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 173 [2021-05-06 05:39:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:23,088 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2021-05-06 05:39:23,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 62 states, 62 states have (on average 1.096774193548387) internal successors, (68), 33 states have internal predecessors, (68), 30 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-06 05:39:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2021-05-06 05:39:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-05-06 05:39:23,089 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:23,089 INFO L523 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:23,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-05-06 05:39:23,294 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:23,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1757258256, now seen corresponding path program 28 times [2021-05-06 05:39:23,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:23,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899670865] [2021-05-06 05:39:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:39:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:39:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2296 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2021-05-06 05:39:24,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:24,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899670865] [2021-05-06 05:39:24,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899670865] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:24,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333954177] [2021-05-06 05:39:24,794 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 05:39:24,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:39:24,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:24,863 WARN L261 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 285 conjunts are in the unsatisfiable core [2021-05-06 05:39:24,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:24,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:25,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2296 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2021-05-06 05:39:26,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333954177] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:26,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:26,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 62] total 64 [2021-05-06 05:39:26,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743809613] [2021-05-06 05:39:26,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-06 05:39:26,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:26,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-06 05:39:26,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=3878, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:39:26,489 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-06 05:39:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:30,616 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2021-05-06 05:39:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-06 05:39:30,617 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 179 [2021-05-06 05:39:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:30,617 INFO L225 Difference]: With dead ends: 104 [2021-05-06 05:39:30,617 INFO L226 Difference]: Without dead ends: 104 [2021-05-06 05:39:30,618 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 206 SyntacticMatches, 28 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1661 ImplicationChecksByTransitivity, 4963.1ms TimeCoverageRelationStatistics Valid=499, Invalid=14263, Unknown=0, NotChecked=0, Total=14762 [2021-05-06 05:39:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-05-06 05:39:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-05-06 05:39:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 67 states have internal predecessors, (68), 32 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-05-06 05:39:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 130 transitions. [2021-05-06 05:39:30,621 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 130 transitions. Word has length 179 [2021-05-06 05:39:30,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:30,621 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 130 transitions. [2021-05-06 05:39:30,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-06 05:39:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 130 transitions. [2021-05-06 05:39:30,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-05-06 05:39:30,622 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:30,622 INFO L523 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:30,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-05-06 05:39:30,847 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:30,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:30,847 INFO L82 PathProgramCache]: Analyzing trace with hash 382180789, now seen corresponding path program 29 times [2021-05-06 05:39:30,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:30,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997595569] [2021-05-06 05:39:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:39:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:39:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:39:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 0 proven. 1247 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked. [2021-05-06 05:39:32,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:32,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997595569] [2021-05-06 05:39:32,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997595569] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:32,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849531473] [2021-05-06 05:39:32,284 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 05:39:48,153 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-05-06 05:39:48,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:48,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 321 conjunts are in the unsatisfiable core [2021-05-06 05:39:48,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:48,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:49,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2465 backedges. 0 proven. 1247 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked. [2021-05-06 05:39:50,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849531473] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:50,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:50,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 62] total 64 [2021-05-06 05:39:50,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513814649] [2021-05-06 05:39:50,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-06 05:39:50,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-06 05:39:50,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3877, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:39:50,317 INFO L87 Difference]: Start difference. First operand 102 states and 130 transitions. Second operand has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-05-06 05:39:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:54,770 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2021-05-06 05:39:54,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-06 05:39:54,770 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 185 [2021-05-06 05:39:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:54,771 INFO L225 Difference]: With dead ends: 107 [2021-05-06 05:39:54,771 INFO L226 Difference]: Without dead ends: 107 [2021-05-06 05:39:54,772 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 187 SyntacticMatches, 57 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1829 ImplicationChecksByTransitivity, 5589.6ms TimeCoverageRelationStatistics Valid=512, Invalid=14740, Unknown=0, NotChecked=0, Total=15252 [2021-05-06 05:39:54,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-06 05:39:54,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-05-06 05:39:54,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 33 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-06 05:39:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2021-05-06 05:39:54,775 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 185 [2021-05-06 05:39:54,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:54,780 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2021-05-06 05:39:54,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 1.09375) internal successors, (70), 34 states have internal predecessors, (70), 31 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-05-06 05:39:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2021-05-06 05:39:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-06 05:39:54,781 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:54,782 INFO L523 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:39:54,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-06 05:39:54,985 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:54,985 INFO L82 PathProgramCache]: Analyzing trace with hash 781027738, now seen corresponding path program 30 times [2021-05-06 05:39:54,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:54,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024454396] [2021-05-06 05:39:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:39:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:39:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:39:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:39:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2640 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-05-06 05:39:56,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:56,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024454396] [2021-05-06 05:39:56,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024454396] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:56,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751517027] [2021-05-06 05:39:56,587 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 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 05:39:59,451 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-05-06 05:39:59,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:59,458 WARN L261 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 310 conjunts are in the unsatisfiable core [2021-05-06 05:39:59,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:59,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:59,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:00,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:01,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:01,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:01,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2640 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-05-06 05:40:01,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751517027] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:01,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:01,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64] total 66 [2021-05-06 05:40:01,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754017587] [2021-05-06 05:40:01,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-06 05:40:01,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:01,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-06 05:40:01,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=4130, Unknown=0, NotChecked=0, Total=4290 [2021-05-06 05:40:01,124 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 66 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 35 states have internal predecessors, (72), 32 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-06 05:40:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:05,888 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2021-05-06 05:40:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-06 05:40:05,889 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 35 states have internal predecessors, (72), 32 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 191 [2021-05-06 05:40:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:05,889 INFO L225 Difference]: With dead ends: 110 [2021-05-06 05:40:05,889 INFO L226 Difference]: Without dead ends: 110 [2021-05-06 05:40:05,890 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 217 SyntacticMatches, 35 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1903 ImplicationChecksByTransitivity, 5417.1ms TimeCoverageRelationStatistics Valid=529, Invalid=15727, Unknown=0, NotChecked=0, Total=16256 [2021-05-06 05:40:05,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-05-06 05:40:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-05-06 05:40:05,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 34 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-05-06 05:40:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2021-05-06 05:40:05,892 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 138 transitions. Word has length 191 [2021-05-06 05:40:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:05,893 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 138 transitions. [2021-05-06 05:40:05,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 35 states have internal predecessors, (72), 32 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-05-06 05:40:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 138 transitions. [2021-05-06 05:40:05,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-05-06 05:40:05,894 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:05,894 INFO L523 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:40:06,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:40:06,099 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:06,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1223308735, now seen corresponding path program 31 times [2021-05-06 05:40:06,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:06,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140479300] [2021-05-06 05:40:06,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2021-05-06 05:40:07,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:07,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140479300] [2021-05-06 05:40:07,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140479300] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:07,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285611999] [2021-05-06 05:40:07,892 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 05:40:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:08,003 WARN L261 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 313 conjunts are in the unsatisfiable core [2021-05-06 05:40:08,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:08,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:08,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2821 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2021-05-06 05:40:09,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285611999] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:09,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:09,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 66] total 68 [2021-05-06 05:40:09,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192170383] [2021-05-06 05:40:09,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-05-06 05:40:09,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:09,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-05-06 05:40:09,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=4391, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:40:09,778 INFO L87 Difference]: Start difference. First operand 108 states and 138 transitions. Second operand has 68 states, 68 states have (on average 1.088235294117647) internal successors, (74), 36 states have internal predecessors, (74), 33 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-05-06 05:40:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:14,726 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2021-05-06 05:40:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-06 05:40:14,726 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.088235294117647) internal successors, (74), 36 states have internal predecessors, (74), 33 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 197 [2021-05-06 05:40:14,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:14,727 INFO L225 Difference]: With dead ends: 113 [2021-05-06 05:40:14,727 INFO L226 Difference]: Without dead ends: 113 [2021-05-06 05:40:14,728 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 229 SyntacticMatches, 31 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2020 ImplicationChecksByTransitivity, 5794.5ms TimeCoverageRelationStatistics Valid=546, Invalid=16746, Unknown=0, NotChecked=0, Total=17292 [2021-05-06 05:40:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-05-06 05:40:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-05-06 05:40:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.0136986301369864) internal successors, (74), 73 states have internal predecessors, (74), 35 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-05-06 05:40:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2021-05-06 05:40:14,731 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 197 [2021-05-06 05:40:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:14,732 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2021-05-06 05:40:14,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 1.088235294117647) internal successors, (74), 36 states have internal predecessors, (74), 33 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-05-06 05:40:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2021-05-06 05:40:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-05-06 05:40:14,733 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:14,733 INFO L523 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:40:14,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:40:14,944 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash -2091093468, now seen corresponding path program 32 times [2021-05-06 05:40:14,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:14,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295339143] [2021-05-06 05:40:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:40:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3008 backedges. 0 proven. 1520 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-05-06 05:40:16,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:16,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295339143] [2021-05-06 05:40:16,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295339143] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:16,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805786149] [2021-05-06 05:40:16,773 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 05:40:16,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:40:16,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:16,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 323 conjunts are in the unsatisfiable core [2021-05-06 05:40:16,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:16,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:16,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:16,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:16,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:16,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:17,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3008 backedges. 0 proven. 1520 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-05-06 05:40:18,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805786149] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:18,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:18,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68] total 70 [2021-05-06 05:40:18,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376501799] [2021-05-06 05:40:18,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-05-06 05:40:18,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:18,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-05-06 05:40:18,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=4660, Unknown=0, NotChecked=0, Total=4830 [2021-05-06 05:40:18,689 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 70 states, 70 states have (on average 1.0857142857142856) internal successors, (76), 37 states have internal predecessors, (76), 34 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-05-06 05:40:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:23,861 INFO L93 Difference]: Finished difference Result 116 states and 149 transitions. [2021-05-06 05:40:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-06 05:40:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 1.0857142857142856) internal successors, (76), 37 states have internal predecessors, (76), 34 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 203 [2021-05-06 05:40:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:23,862 INFO L225 Difference]: With dead ends: 116 [2021-05-06 05:40:23,862 INFO L226 Difference]: Without dead ends: 116 [2021-05-06 05:40:23,863 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 236 SyntacticMatches, 32 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2149 ImplicationChecksByTransitivity, 5984.0ms TimeCoverageRelationStatistics Valid=563, Invalid=17797, Unknown=0, NotChecked=0, Total=18360 [2021-05-06 05:40:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-05-06 05:40:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-05-06 05:40:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 36 states have call successors, (36), 4 states have call predecessors, (36), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-05-06 05:40:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2021-05-06 05:40:23,870 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 203 [2021-05-06 05:40:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:23,871 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2021-05-06 05:40:23,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 1.0857142857142856) internal successors, (76), 37 states have internal predecessors, (76), 34 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-05-06 05:40:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2021-05-06 05:40:23,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-05-06 05:40:23,871 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:23,871 INFO L523 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:40:24,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-05-06 05:40:24,089 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:24,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1963396809, now seen corresponding path program 33 times [2021-05-06 05:40:24,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:24,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728667718] [2021-05-06 05:40:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:40:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:40:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3201 backedges. 0 proven. 1617 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-05-06 05:40:25,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:25,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728667718] [2021-05-06 05:40:25,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728667718] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:25,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3653505] [2021-05-06 05:40:25,951 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 05:40:30,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-05-06 05:40:30,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:30,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 336 conjunts are in the unsatisfiable core [2021-05-06 05:40:30,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:30,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:30,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:31,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3201 backedges. 0 proven. 1617 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2021-05-06 05:40:32,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3653505] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:32,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:32,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 72] total 74 [2021-05-06 05:40:32,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112875416] [2021-05-06 05:40:32,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-05-06 05:40:32,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:32,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-05-06 05:40:32,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=5223, Unknown=0, NotChecked=0, Total=5402 [2021-05-06 05:40:32,242 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand has 74 states, 74 states have (on average 1.0810810810810811) internal successors, (80), 39 states have internal predecessors, (80), 36 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-05-06 05:40:37,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:37,810 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2021-05-06 05:40:37,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-06 05:40:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 1.0810810810810811) internal successors, (80), 39 states have internal predecessors, (80), 36 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 209 [2021-05-06 05:40:37,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:37,812 INFO L225 Difference]: With dead ends: 119 [2021-05-06 05:40:37,812 INFO L226 Difference]: Without dead ends: 119 [2021-05-06 05:40:37,813 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 240 SyntacticMatches, 34 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 6433.6ms TimeCoverageRelationStatistics Valid=584, Invalid=19438, Unknown=0, NotChecked=0, Total=20022 [2021-05-06 05:40:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-06 05:40:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-05-06 05:40:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 77 states have (on average 1.0129870129870129) internal successors, (78), 77 states have internal predecessors, (78), 37 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-06 05:40:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2021-05-06 05:40:37,816 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 209 [2021-05-06 05:40:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:37,816 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2021-05-06 05:40:37,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.0810810810810811) internal successors, (80), 39 states have internal predecessors, (80), 36 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-05-06 05:40:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2021-05-06 05:40:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-06 05:40:37,817 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:37,817 INFO L523 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:40:38,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:40:38,023 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:38,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:38,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1672534958, now seen corresponding path program 34 times [2021-05-06 05:40:38,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:38,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622820507] [2021-05-06 05:40:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:40:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:40:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:40:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3400 backedges. 0 proven. 1717 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2021-05-06 05:40:39,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:39,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622820507] [2021-05-06 05:40:39,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622820507] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:39,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802744836] [2021-05-06 05:40:39,997 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 05:40:40,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:40:40,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:40,076 WARN L261 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 345 conjunts are in the unsatisfiable core [2021-05-06 05:40:40,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:40,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:40,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:41,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3400 backedges. 0 proven. 1717 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2021-05-06 05:40:42,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802744836] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:42,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:42,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 74] total 76 [2021-05-06 05:40:42,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617073639] [2021-05-06 05:40:42,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-06 05:40:42,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:42,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-06 05:40:42,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=5516, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:40:42,181 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-06 05:40:47,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:47,985 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2021-05-06 05:40:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-06 05:40:47,986 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 215 [2021-05-06 05:40:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:47,987 INFO L225 Difference]: With dead ends: 122 [2021-05-06 05:40:47,987 INFO L226 Difference]: Without dead ends: 122 [2021-05-06 05:40:47,988 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 248 SyntacticMatches, 34 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2423 ImplicationChecksByTransitivity, 6747.0ms TimeCoverageRelationStatistics Valid=601, Invalid=20569, Unknown=0, NotChecked=0, Total=21170 [2021-05-06 05:40:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-05-06 05:40:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-05-06 05:40:47,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 38 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-05-06 05:40:47,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2021-05-06 05:40:47,990 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 215 [2021-05-06 05:40:47,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:47,990 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2021-05-06 05:40:47,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-06 05:40:47,991 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2021-05-06 05:40:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-05-06 05:40:47,991 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:47,991 INFO L523 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:40:48,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-05-06 05:40:48,210 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:48,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:48,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1195071277, now seen corresponding path program 35 times [2021-05-06 05:40:48,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:48,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792447882] [2021-05-06 05:40:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:40:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:40:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:40:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:40:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3605 backedges. 0 proven. 1820 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2021-05-06 05:40:50,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:50,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792447882] [2021-05-06 05:40:50,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792447882] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:50,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215343612] [2021-05-06 05:40:50,310 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 05:41:18,236 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-05-06 05:41:18,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:18,249 WARN L261 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 379 conjunts are in the unsatisfiable core [2021-05-06 05:41:18,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:18,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:18,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:19,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3605 backedges. 0 proven. 1820 refuted. 0 times theorem prover too weak. 1785 trivial. 0 not checked. [2021-05-06 05:41:20,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215343612] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:20,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:20,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 74] total 76 [2021-05-06 05:41:20,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059551547] [2021-05-06 05:41:20,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-06 05:41:20,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:20,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-06 05:41:20,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=5515, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:41:20,955 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-05-06 05:41:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:26,820 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions. [2021-05-06 05:41:26,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-06 05:41:26,820 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 221 [2021-05-06 05:41:26,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:26,821 INFO L225 Difference]: With dead ends: 125 [2021-05-06 05:41:26,821 INFO L226 Difference]: Without dead ends: 125 [2021-05-06 05:41:26,822 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 231 SyntacticMatches, 61 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 7496.4ms TimeCoverageRelationStatistics Valid=614, Invalid=21142, Unknown=0, NotChecked=0, Total=21756 [2021-05-06 05:41:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-05-06 05:41:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-05-06 05:41:26,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 81 states have internal predecessors, (82), 39 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-05-06 05:41:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2021-05-06 05:41:26,824 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 221 [2021-05-06 05:41:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:26,825 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2021-05-06 05:41:26,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 76 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 40 states have internal predecessors, (82), 37 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-05-06 05:41:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2021-05-06 05:41:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-05-06 05:41:26,826 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:26,826 INFO L523 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:41:27,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-05-06 05:41:27,027 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:27,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:27,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1236187592, now seen corresponding path program 36 times [2021-05-06 05:41:27,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:27,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473994680] [2021-05-06 05:41:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:41:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:41:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:41:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3816 backedges. 0 proven. 1926 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2021-05-06 05:41:29,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:29,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473994680] [2021-05-06 05:41:29,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473994680] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:29,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573939375] [2021-05-06 05:41:29,200 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 05:41:36,059 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-05-06 05:41:36,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:36,070 WARN L261 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 378 conjunts are in the unsatisfiable core [2021-05-06 05:41:36,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:36,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3816 backedges. 0 proven. 1926 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2021-05-06 05:41:38,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573939375] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:38,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:38,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76] total 78 [2021-05-06 05:41:38,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89618893] [2021-05-06 05:41:38,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-06 05:41:38,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-06 05:41:38,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=5816, Unknown=0, NotChecked=0, Total=6006 [2021-05-06 05:41:38,660 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 78 states, 78 states have (on average 1.0769230769230769) internal successors, (84), 41 states have internal predecessors, (84), 38 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-05-06 05:41:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:44,742 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2021-05-06 05:41:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-05-06 05:41:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 1.0769230769230769) internal successors, (84), 41 states have internal predecessors, (84), 38 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 227 [2021-05-06 05:41:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:44,743 INFO L225 Difference]: With dead ends: 128 [2021-05-06 05:41:44,743 INFO L226 Difference]: Without dead ends: 128 [2021-05-06 05:41:44,744 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 251 SyntacticMatches, 49 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2729 ImplicationChecksByTransitivity, 7578.2ms TimeCoverageRelationStatistics Valid=631, Invalid=22321, Unknown=0, NotChecked=0, Total=22952 [2021-05-06 05:41:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-05-06 05:41:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-05-06 05:41:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 83 states have (on average 1.0120481927710843) internal successors, (84), 83 states have internal predecessors, (84), 40 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-05-06 05:41:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 162 transitions. [2021-05-06 05:41:44,750 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 162 transitions. Word has length 227 [2021-05-06 05:41:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:44,750 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 162 transitions. [2021-05-06 05:41:44,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 1.0769230769230769) internal successors, (84), 41 states have internal predecessors, (84), 38 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-05-06 05:41:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 162 transitions. [2021-05-06 05:41:44,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-05-06 05:41:44,751 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:44,751 INFO L523 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:41:44,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-05-06 05:41:44,957 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:44,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1812562909, now seen corresponding path program 37 times [2021-05-06 05:41:44,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:44,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595500668] [2021-05-06 05:41:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:41:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:41:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:41:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:41:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,240 INFO L134 CoverageAnalysis]: Checked inductivity of 4033 backedges. 0 proven. 2035 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2021-05-06 05:41:47,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:47,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595500668] [2021-05-06 05:41:47,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595500668] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:47,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317980544] [2021-05-06 05:41:47,240 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 05:41:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:47,334 WARN L261 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 373 conjunts are in the unsatisfiable core [2021-05-06 05:41:47,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:47,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:47,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:48,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4033 backedges. 0 proven. 2035 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2021-05-06 05:41:49,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317980544] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:49,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:49,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 78] total 80 [2021-05-06 05:41:49,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086530892] [2021-05-06 05:41:49,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-06 05:41:49,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:49,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-06 05:41:49,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=6125, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:41:49,660 INFO L87 Difference]: Start difference. First operand 126 states and 162 transitions. Second operand has 80 states, 80 states have (on average 1.075) internal successors, (86), 42 states have internal predecessors, (86), 39 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-05-06 05:41:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:56,064 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-05-06 05:41:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-06 05:41:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 1.075) internal successors, (86), 42 states have internal predecessors, (86), 39 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 233 [2021-05-06 05:41:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:56,065 INFO L225 Difference]: With dead ends: 131 [2021-05-06 05:41:56,065 INFO L226 Difference]: Without dead ends: 131 [2021-05-06 05:41:56,066 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 271 SyntacticMatches, 37 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 7509.4ms TimeCoverageRelationStatistics Valid=648, Invalid=23532, Unknown=0, NotChecked=0, Total=24180 [2021-05-06 05:41:56,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-06 05:41:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-05-06 05:41:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 41 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-05-06 05:41:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2021-05-06 05:41:56,069 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 233 [2021-05-06 05:41:56,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:56,069 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2021-05-06 05:41:56,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 1.075) internal successors, (86), 42 states have internal predecessors, (86), 39 states have call successors, (41), 3 states have call predecessors, (41), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-05-06 05:41:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2021-05-06 05:41:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-05-06 05:41:56,070 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:56,071 INFO L523 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:41:56,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-05-06 05:41:56,271 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:56,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:56,272 INFO L82 PathProgramCache]: Analyzing trace with hash -331075134, now seen corresponding path program 38 times [2021-05-06 05:41:56,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:56,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003987642] [2021-05-06 05:41:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:41:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:41:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:41:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:41:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:41:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4256 backedges. 0 proven. 2147 refuted. 0 times theorem prover too weak. 2109 trivial. 0 not checked. [2021-05-06 05:41:58,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:58,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003987642] [2021-05-06 05:41:58,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003987642] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:58,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697453054] [2021-05-06 05:41:58,646 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 05:41:58,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:41:58,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:58,743 WARN L261 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 383 conjunts are in the unsatisfiable core [2021-05-06 05:41:58,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:58,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:58,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:59,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:00,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4256 backedges. 0 proven. 2147 refuted. 0 times theorem prover too weak. 2109 trivial. 0 not checked. [2021-05-06 05:42:01,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697453054] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:01,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:01,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 80] total 82 [2021-05-06 05:42:01,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589248610] [2021-05-06 05:42:01,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-05-06 05:42:01,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:01,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-05-06 05:42:01,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=6442, Unknown=0, NotChecked=0, Total=6642 [2021-05-06 05:42:01,181 INFO L87 Difference]: Start difference. First operand 129 states and 166 transitions. Second operand has 82 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 43 states have internal predecessors, (88), 40 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-05-06 05:42:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:42:07,992 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2021-05-06 05:42:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-06 05:42:07,993 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 43 states have internal predecessors, (88), 40 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 239 [2021-05-06 05:42:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:42:07,995 INFO L225 Difference]: With dead ends: 134 [2021-05-06 05:42:07,995 INFO L226 Difference]: Without dead ends: 134 [2021-05-06 05:42:07,997 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 278 SyntacticMatches, 38 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3007 ImplicationChecksByTransitivity, 7948.8ms TimeCoverageRelationStatistics Valid=665, Invalid=24775, Unknown=0, NotChecked=0, Total=25440 [2021-05-06 05:42:07,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-05-06 05:42:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-05-06 05:42:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 87 states have (on average 1.0114942528735633) internal successors, (88), 87 states have internal predecessors, (88), 42 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-05-06 05:42:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 170 transitions. [2021-05-06 05:42:07,999 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 170 transitions. Word has length 239 [2021-05-06 05:42:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:42:07,999 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 170 transitions. [2021-05-06 05:42:08,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 43 states have internal predecessors, (88), 40 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-05-06 05:42:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 170 transitions. [2021-05-06 05:42:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-05-06 05:42:08,000 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:42:08,001 INFO L523 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:42:08,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:42:08,218 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:42:08,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:42:08,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1057218585, now seen corresponding path program 39 times [2021-05-06 05:42:08,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:42:08,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499048162] [2021-05-06 05:42:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:42:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:42:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:42:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:42:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:42:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:42:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:42:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:42:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:42:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:42:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:42:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:42:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:42:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:42:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:42:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:42:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:42:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:42:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:42:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:42:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:42:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:42:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:42:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:42:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:42:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:42:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:42:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:42:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:42:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:42:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:42:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:42:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:42:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:42:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:42:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:42:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:42:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:42:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:42:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:42:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:42:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4485 backedges. 0 proven. 2262 refuted. 0 times theorem prover too weak. 2223 trivial. 0 not checked. [2021-05-06 05:42:10,716 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:42:10,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499048162] [2021-05-06 05:42:10,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499048162] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:10,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855720363] [2021-05-06 05:42:10,717 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 05:42:15,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-05-06 05:42:15,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:42:15,071 WARN L261 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 395 conjunts are in the unsatisfiable core [2021-05-06 05:42:15,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:42:15,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:15,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:16,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4485 backedges. 0 proven. 2262 refuted. 0 times theorem prover too weak. 2223 trivial. 0 not checked. [2021-05-06 05:42:17,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855720363] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:17,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:17,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 84] total 86 [2021-05-06 05:42:17,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294328435] [2021-05-06 05:42:17,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-05-06 05:42:17,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:17,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-05-06 05:42:17,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=7101, Unknown=0, NotChecked=0, Total=7310 [2021-05-06 05:42:17,683 INFO L87 Difference]: Start difference. First operand 132 states and 170 transitions. Second operand has 86 states, 86 states have (on average 1.069767441860465) internal successors, (92), 45 states have internal predecessors, (92), 42 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-05-06 05:42:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:42:24,836 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2021-05-06 05:42:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-06 05:42:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 1.069767441860465) internal successors, (92), 45 states have internal predecessors, (92), 42 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 245 [2021-05-06 05:42:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:42:24,837 INFO L225 Difference]: With dead ends: 137 [2021-05-06 05:42:24,837 INFO L226 Difference]: Without dead ends: 137 [2021-05-06 05:42:24,838 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 283 SyntacticMatches, 39 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3168 ImplicationChecksByTransitivity, 8405.1ms TimeCoverageRelationStatistics Valid=686, Invalid=26704, Unknown=0, NotChecked=0, Total=27390 [2021-05-06 05:42:24,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-05-06 05:42:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-05-06 05:42:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 89 states have (on average 1.0112359550561798) internal successors, (90), 89 states have internal predecessors, (90), 43 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-06 05:42:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2021-05-06 05:42:24,841 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 245 [2021-05-06 05:42:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:42:24,841 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2021-05-06 05:42:24,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 1.069767441860465) internal successors, (92), 45 states have internal predecessors, (92), 42 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-05-06 05:42:24,841 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2021-05-06 05:42:24,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-05-06 05:42:24,842 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:42:24,842 INFO L523 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:42:25,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:42:25,048 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:42:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:42:25,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1596973492, now seen corresponding path program 40 times [2021-05-06 05:42:25,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:42:25,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134646636] [2021-05-06 05:42:25,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:42:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:42:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:42:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:42:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:42:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:42:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:42:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:42:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:42:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:42:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:42:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:42:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:42:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:42:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:42:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:42:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:42:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:42:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:42:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:42:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:42:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:42:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:42:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:42:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:42:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:42:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:42:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:42:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:42:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:42:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:42:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:42:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:42:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:42:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:42:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:42:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:42:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:42:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:42:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:42:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:42:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:42:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4720 backedges. 0 proven. 2380 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked. [2021-05-06 05:42:27,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:42:27,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134646636] [2021-05-06 05:42:27,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134646636] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:27,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363003386] [2021-05-06 05:42:27,604 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 05:42:27,687 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:42:27,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:42:27,692 WARN L261 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 405 conjunts are in the unsatisfiable core [2021-05-06 05:42:27,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:42:27,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:27,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:28,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:29,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4720 backedges. 0 proven. 2380 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked. [2021-05-06 05:42:30,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363003386] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:30,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:30,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 86] total 88 [2021-05-06 05:42:30,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876168951] [2021-05-06 05:42:30,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-06 05:42:30,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:30,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-06 05:42:30,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=7442, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:42:30,439 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-06 05:42:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:42:37,949 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2021-05-06 05:42:37,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-06 05:42:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 251 [2021-05-06 05:42:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:42:37,950 INFO L225 Difference]: With dead ends: 140 [2021-05-06 05:42:37,950 INFO L226 Difference]: Without dead ends: 140 [2021-05-06 05:42:37,952 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 290 SyntacticMatches, 40 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3329 ImplicationChecksByTransitivity, 8799.7ms TimeCoverageRelationStatistics Valid=703, Invalid=28027, Unknown=0, NotChecked=0, Total=28730 [2021-05-06 05:42:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-05-06 05:42:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-05-06 05:42:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 91 states have (on average 1.010989010989011) internal successors, (92), 91 states have internal predecessors, (92), 44 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-05-06 05:42:37,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2021-05-06 05:42:37,954 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 251 [2021-05-06 05:42:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:42:37,954 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2021-05-06 05:42:37,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-06 05:42:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2021-05-06 05:42:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-05-06 05:42:37,955 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:42:37,955 INFO L523 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:42:38,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:42:38,172 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:42:38,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:42:38,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1677917425, now seen corresponding path program 41 times [2021-05-06 05:42:38,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:42:38,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97437415] [2021-05-06 05:42:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:42:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:42:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:42:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:42:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:42:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:42:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:42:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:42:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:42:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:42:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:42:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:42:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:42:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:42:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:42:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:42:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:42:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:42:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:42:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:42:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:42:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:42:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:42:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:42:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:42:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:42:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:42:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:42:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:42:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:42:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:42:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:42:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:42:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:42:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:42:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:42:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:42:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:42:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:42:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:42:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:42:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:42:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:42:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4961 backedges. 0 proven. 2501 refuted. 0 times theorem prover too weak. 2460 trivial. 0 not checked. [2021-05-06 05:42:40,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:42:40,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97437415] [2021-05-06 05:42:40,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97437415] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:40,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206454166] [2021-05-06 05:42:40,870 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 05:44:13,495 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-05-06 05:44:13,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:44:13,539 WARN L261 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 443 conjunts are in the unsatisfiable core [2021-05-06 05:44:13,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:44:13,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:13,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:14,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:15,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:16,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4961 backedges. 0 proven. 2501 refuted. 0 times theorem prover too weak. 2460 trivial. 0 not checked. [2021-05-06 05:44:17,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206454166] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:44:17,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:44:17,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 86] total 88 [2021-05-06 05:44:17,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192988019] [2021-05-06 05:44:17,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-06 05:44:17,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:44:17,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-06 05:44:17,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=7441, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:44:17,149 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-05-06 05:44:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:44:24,831 INFO L93 Difference]: Finished difference Result 143 states and 185 transitions. [2021-05-06 05:44:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-06 05:44:24,832 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 257 [2021-05-06 05:44:24,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:44:24,833 INFO L225 Difference]: With dead ends: 143 [2021-05-06 05:44:24,833 INFO L226 Difference]: Without dead ends: 143 [2021-05-06 05:44:24,834 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 269 SyntacticMatches, 71 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3550 ImplicationChecksByTransitivity, 9846.2ms TimeCoverageRelationStatistics Valid=716, Invalid=28696, Unknown=0, NotChecked=0, Total=29412 [2021-05-06 05:44:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-05-06 05:44:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2021-05-06 05:44:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 93 states have (on average 1.010752688172043) internal successors, (94), 93 states have internal predecessors, (94), 45 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-05-06 05:44:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2021-05-06 05:44:24,836 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 257 [2021-05-06 05:44:24,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:44:24,836 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2021-05-06 05:44:24,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 1.0681818181818181) internal successors, (94), 46 states have internal predecessors, (94), 43 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-05-06 05:44:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2021-05-06 05:44:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-05-06 05:44:24,837 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:44:24,837 INFO L523 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:44:25,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-05-06 05:44:25,046 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:44:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:44:25,046 INFO L82 PathProgramCache]: Analyzing trace with hash 964398038, now seen corresponding path program 42 times [2021-05-06 05:44:25,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:44:25,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351486773] [2021-05-06 05:44:25,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:44:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:44:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:44:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:44:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:44:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:44:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:44:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:44:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:44:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:44:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:44:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:44:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:44:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:44:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:44:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:44:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:44:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:44:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:44:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:44:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:44:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:44:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:44:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:44:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:44:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:44:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:44:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:44:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:44:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:44:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:44:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:44:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:44:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:44:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:44:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:44:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:44:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:44:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:44:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:44:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:44:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:44:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:44:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:44:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5208 backedges. 0 proven. 2625 refuted. 0 times theorem prover too weak. 2583 trivial. 0 not checked. [2021-05-06 05:44:27,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:44:27,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351486773] [2021-05-06 05:44:27,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351486773] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:44:27,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296052586] [2021-05-06 05:44:27,967 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 05:44:43,703 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-05-06 05:44:43,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:44:43,717 WARN L261 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 453 conjunts are in the unsatisfiable core [2021-05-06 05:44:43,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:44:43,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:43,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:44,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:45,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:46,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5208 backedges. 0 proven. 2625 refuted. 0 times theorem prover too weak. 2583 trivial. 0 not checked. [2021-05-06 05:44:47,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296052586] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:44:47,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:44:47,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 88] total 90 [2021-05-06 05:44:47,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518174209] [2021-05-06 05:44:47,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-06 05:44:47,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:44:47,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-06 05:44:47,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=7790, Unknown=0, NotChecked=0, Total=8010 [2021-05-06 05:44:47,401 INFO L87 Difference]: Start difference. First operand 141 states and 182 transitions. Second operand has 90 states, 90 states have (on average 1.0666666666666667) internal successors, (96), 47 states have internal predecessors, (96), 44 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-05-06 05:44:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:44:55,374 INFO L93 Difference]: Finished difference Result 146 states and 189 transitions. [2021-05-06 05:44:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-06 05:44:55,374 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 1.0666666666666667) internal successors, (96), 47 states have internal predecessors, (96), 44 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 263 [2021-05-06 05:44:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:44:55,375 INFO L225 Difference]: With dead ends: 146 [2021-05-06 05:44:55,375 INFO L226 Difference]: Without dead ends: 146 [2021-05-06 05:44:55,376 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 278 SyntacticMatches, 70 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3713 ImplicationChecksByTransitivity, 10267.3ms TimeCoverageRelationStatistics Valid=733, Invalid=30067, Unknown=0, NotChecked=0, Total=30800 [2021-05-06 05:44:55,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-05-06 05:44:55,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-05-06 05:44:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 46 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-05-06 05:44:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2021-05-06 05:44:55,381 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 263 [2021-05-06 05:44:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:44:55,382 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2021-05-06 05:44:55,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 1.0666666666666667) internal successors, (96), 47 states have internal predecessors, (96), 44 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-05-06 05:44:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2021-05-06 05:44:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-05-06 05:44:55,383 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:44:55,383 INFO L523 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:44:55,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:44:55,590 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:44:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:44:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 465869563, now seen corresponding path program 43 times [2021-05-06 05:44:55,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:44:55,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605539940] [2021-05-06 05:44:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:44:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:44:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:44:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:44:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:44:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:44:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:44:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:44:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:44:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:44:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:44:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:44:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:44:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:44:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:44:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:44:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:44:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:44:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:44:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:44:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:44:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:44:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:44:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:44:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:44:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:44:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:44:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:44:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:44:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:44:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:44:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:44:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:44:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:44:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:44:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:44:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:44:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:44:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:44:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:44:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:44:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:44:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:44:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:44:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:44:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5461 backedges. 0 proven. 2752 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked. [2021-05-06 05:44:58,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:44:58,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605539940] [2021-05-06 05:44:58,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605539940] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:44:58,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123501123] [2021-05-06 05:44:58,520 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 05:44:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:58,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 433 conjunts are in the unsatisfiable core [2021-05-06 05:44:58,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:44:58,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:58,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:44:59,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:00,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5461 backedges. 0 proven. 2752 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked. [2021-05-06 05:45:01,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123501123] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:01,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:45:01,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 90] total 92 [2021-05-06 05:45:01,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9148627] [2021-05-06 05:45:01,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-05-06 05:45:01,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:45:01,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-05-06 05:45:01,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=8147, Unknown=0, NotChecked=0, Total=8372 [2021-05-06 05:45:01,648 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand has 92 states, 92 states have (on average 1.065217391304348) internal successors, (98), 48 states have internal predecessors, (98), 45 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-05-06 05:45:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:45:10,286 INFO L93 Difference]: Finished difference Result 149 states and 193 transitions. [2021-05-06 05:45:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-06 05:45:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 1.065217391304348) internal successors, (98), 48 states have internal predecessors, (98), 45 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 269 [2021-05-06 05:45:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:45:10,287 INFO L225 Difference]: With dead ends: 149 [2021-05-06 05:45:10,287 INFO L226 Difference]: Without dead ends: 149 [2021-05-06 05:45:10,288 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 313 SyntacticMatches, 43 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3832 ImplicationChecksByTransitivity, 9962.1ms TimeCoverageRelationStatistics Valid=750, Invalid=31470, Unknown=0, NotChecked=0, Total=32220 [2021-05-06 05:45:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-05-06 05:45:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2021-05-06 05:45:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 97 states have (on average 1.0103092783505154) internal successors, (98), 97 states have internal predecessors, (98), 47 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-05-06 05:45:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2021-05-06 05:45:10,291 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 190 transitions. Word has length 269 [2021-05-06 05:45:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:45:10,291 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 190 transitions. [2021-05-06 05:45:10,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 92 states, 92 states have (on average 1.065217391304348) internal successors, (98), 48 states have internal predecessors, (98), 45 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2021-05-06 05:45:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2021-05-06 05:45:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-05-06 05:45:10,292 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:45:10,292 INFO L523 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:45:10,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:45:10,500 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:45:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:45:10,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2045969824, now seen corresponding path program 44 times [2021-05-06 05:45:10,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:45:10,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122581762] [2021-05-06 05:45:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:45:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:45:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:45:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:45:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:45:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:45:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:45:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:45:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:45:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:45:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:45:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:45:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:45:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:45:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:45:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:45:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:45:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:45:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:45:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:45:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:45:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:45:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:45:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:45:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:45:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:45:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:45:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:45:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:45:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:45:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:45:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:45:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:45:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:45:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:45:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:45:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:45:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:45:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:45:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:45:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:45:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:45:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:45:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:45:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:45:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:45:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5720 backedges. 0 proven. 2882 refuted. 0 times theorem prover too weak. 2838 trivial. 0 not checked. [2021-05-06 05:45:13,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:45:13,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122581762] [2021-05-06 05:45:13,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122581762] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:13,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762886573] [2021-05-06 05:45:13,582 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 05:45:13,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:45:13,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:45:13,682 WARN L261 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 443 conjunts are in the unsatisfiable core [2021-05-06 05:45:13,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:45:13,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:13,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:14,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:15,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5720 backedges. 0 proven. 2882 refuted. 0 times theorem prover too weak. 2838 trivial. 0 not checked. [2021-05-06 05:45:16,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762886573] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:16,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:45:16,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 92] total 94 [2021-05-06 05:45:16,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071680461] [2021-05-06 05:45:16,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-06 05:45:16,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:45:16,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-06 05:45:16,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=8512, Unknown=0, NotChecked=0, Total=8742 [2021-05-06 05:45:16,918 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. Second operand has 94 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 49 states have internal predecessors, (100), 46 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-05-06 05:45:25,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:45:25,871 INFO L93 Difference]: Finished difference Result 152 states and 197 transitions. [2021-05-06 05:45:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-06 05:45:25,871 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 49 states have internal predecessors, (100), 46 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 275 [2021-05-06 05:45:25,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:45:25,872 INFO L225 Difference]: With dead ends: 152 [2021-05-06 05:45:25,872 INFO L226 Difference]: Without dead ends: 152 [2021-05-06 05:45:25,873 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 320 SyntacticMatches, 44 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4009 ImplicationChecksByTransitivity, 10525.1ms TimeCoverageRelationStatistics Valid=767, Invalid=32905, Unknown=0, NotChecked=0, Total=33672 [2021-05-06 05:45:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-05-06 05:45:25,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2021-05-06 05:45:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 states have internal predecessors, (100), 48 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-05-06 05:45:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2021-05-06 05:45:25,876 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 275 [2021-05-06 05:45:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:45:25,876 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2021-05-06 05:45:25,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 94 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 49 states have internal predecessors, (100), 46 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-05-06 05:45:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2021-05-06 05:45:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-05-06 05:45:25,877 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:45:25,877 INFO L523 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:45:26,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-05-06 05:45:26,093 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:45:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:45:26,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1764194821, now seen corresponding path program 45 times [2021-05-06 05:45:26,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:45:26,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439287740] [2021-05-06 05:45:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:45:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:45:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:45:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:45:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:45:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:45:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:45:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:45:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:45:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:45:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:45:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:45:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:45:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:45:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:45:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:45:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:45:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:45:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:45:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:45:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:45:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:45:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:45:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:45:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:45:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:45:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:45:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:45:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:45:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:45:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:45:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:45:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:45:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:45:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:45:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:45:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:45:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:45:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:45:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:45:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:45:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:45:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:45:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:45:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:45:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:45:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:45:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5985 backedges. 0 proven. 3015 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2021-05-06 05:45:29,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:45:29,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439287740] [2021-05-06 05:45:29,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439287740] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:29,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538112745] [2021-05-06 05:45:29,309 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 05:45:33,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-05-06 05:45:33,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:45:33,273 WARN L261 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 456 conjunts are in the unsatisfiable core [2021-05-06 05:45:33,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:45:33,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:33,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:34,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:35,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5985 backedges. 0 proven. 3015 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2021-05-06 05:45:36,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538112745] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:36,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:45:36,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 96] total 98 [2021-05-06 05:45:36,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029531665] [2021-05-06 05:45:36,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-05-06 05:45:36,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:45:36,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-05-06 05:45:36,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=9267, Unknown=0, NotChecked=0, Total=9506 [2021-05-06 05:45:36,846 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 98 states, 98 states have (on average 1.0612244897959184) internal successors, (104), 51 states have internal predecessors, (104), 48 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-05-06 05:45:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:45:46,117 INFO L93 Difference]: Finished difference Result 155 states and 201 transitions. [2021-05-06 05:45:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-05-06 05:45:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.0612244897959184) internal successors, (104), 51 states have internal predecessors, (104), 48 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 281 [2021-05-06 05:45:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:45:46,119 INFO L225 Difference]: With dead ends: 155 [2021-05-06 05:45:46,119 INFO L226 Difference]: Without dead ends: 155 [2021-05-06 05:45:46,120 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 324 SyntacticMatches, 46 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4196 ImplicationChecksByTransitivity, 11096.5ms TimeCoverageRelationStatistics Valid=788, Invalid=35122, Unknown=0, NotChecked=0, Total=35910 [2021-05-06 05:45:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-06 05:45:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2021-05-06 05:45:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 49 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-06 05:45:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2021-05-06 05:45:46,122 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 281 [2021-05-06 05:45:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:45:46,123 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2021-05-06 05:45:46,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 98 states, 98 states have (on average 1.0612244897959184) internal successors, (104), 51 states have internal predecessors, (104), 48 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-05-06 05:45:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2021-05-06 05:45:46,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-05-06 05:45:46,124 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:45:46,124 INFO L523 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:45:46,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-06 05:45:46,330 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:45:46,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:45:46,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1619716586, now seen corresponding path program 46 times [2021-05-06 05:45:46,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:45:46,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469264276] [2021-05-06 05:45:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:45:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:45:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:45:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:45:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:45:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:45:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:45:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:45:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:45:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:45:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:45:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:45:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:45:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:45:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:45:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:45:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:45:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:45:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:45:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:45:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:45:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:45:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:45:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:45:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:45:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:45:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:45:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:45:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:45:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:45:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:45:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:45:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:45:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:45:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:45:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:45:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:45:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:45:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:45:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:45:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:45:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:45:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:45:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:45:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:45:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:45:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:45:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:45:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:45:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6256 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 3105 trivial. 0 not checked. [2021-05-06 05:45:49,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:45:49,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469264276] [2021-05-06 05:45:49,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469264276] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:49,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365393914] [2021-05-06 05:45:49,722 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 05:45:49,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:45:49,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:45:49,823 WARN L261 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 465 conjunts are in the unsatisfiable core [2021-05-06 05:45:49,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:45:49,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:49,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:49,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:49,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:49,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:50,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:51,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:52,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6256 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 3105 trivial. 0 not checked. [2021-05-06 05:45:53,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365393914] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:53,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:45:53,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 98] total 100 [2021-05-06 05:45:53,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7693667] [2021-05-06 05:45:53,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states [2021-05-06 05:45:53,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:45:53,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-05-06 05:45:53,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=9656, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:45:53,398 INFO L87 Difference]: Start difference. First operand 153 states and 198 transitions. Second operand has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-06 05:46:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:46:02,853 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2021-05-06 05:46:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-05-06 05:46:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 287 [2021-05-06 05:46:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:46:02,854 INFO L225 Difference]: With dead ends: 158 [2021-05-06 05:46:02,854 INFO L226 Difference]: Without dead ends: 158 [2021-05-06 05:46:02,856 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 332 SyntacticMatches, 46 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4379 ImplicationChecksByTransitivity, 11351.3ms TimeCoverageRelationStatistics Valid=805, Invalid=36637, Unknown=0, NotChecked=0, Total=37442 [2021-05-06 05:46:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-05-06 05:46:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2021-05-06 05:46:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 103 states have (on average 1.0097087378640777) internal successors, (104), 103 states have internal predecessors, (104), 50 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-05-06 05:46:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2021-05-06 05:46:02,858 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 287 [2021-05-06 05:46:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:46:02,859 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2021-05-06 05:46:02,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-06 05:46:02,859 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2021-05-06 05:46:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-05-06 05:46:02,860 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:46:02,860 INFO L523 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:46:03,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-05-06 05:46:03,073 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:46:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:46:03,073 INFO L82 PathProgramCache]: Analyzing trace with hash 659692047, now seen corresponding path program 47 times [2021-05-06 05:46:03,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:46:03,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263078449] [2021-05-06 05:46:03,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:46:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:46:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:46:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:46:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:46:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:46:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:46:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:46:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:46:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:46:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:46:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:46:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:46:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:46:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:46:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:46:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:46:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:46:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:46:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:46:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:46:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:46:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:46:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:46:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:46:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:46:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:46:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:46:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:46:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:46:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:46:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:46:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:46:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:46:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:46:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:46:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:46:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:46:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:46:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:46:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:46:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:46:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:46:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:46:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:46:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:46:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:46:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:46:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:46:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:06,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6533 backedges. 0 proven. 3290 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2021-05-06 05:46:06,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:46:06,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263078449] [2021-05-06 05:46:06,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263078449] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:06,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220420188] [2021-05-06 05:46:06,481 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 05:47:42,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-05-06 05:47:42,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:47:42,677 WARN L261 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 473 conjunts are in the unsatisfiable core [2021-05-06 05:47:42,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:47:42,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:42,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:43,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:44,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:45,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6533 backedges. 0 proven. 3290 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2021-05-06 05:47:46,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220420188] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:46,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:47:46,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 98] total 100 [2021-05-06 05:47:46,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536207949] [2021-05-06 05:47:46,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states [2021-05-06 05:47:46,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:47:46,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-05-06 05:47:46,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=9655, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:47:46,174 INFO L87 Difference]: Start difference. First operand 156 states and 202 transitions. Second operand has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-05-06 05:47:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:47:55,978 INFO L93 Difference]: Finished difference Result 161 states and 209 transitions. [2021-05-06 05:47:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-05-06 05:47:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 293 [2021-05-06 05:47:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:47:55,980 INFO L225 Difference]: With dead ends: 161 [2021-05-06 05:47:55,980 INFO L226 Difference]: Without dead ends: 161 [2021-05-06 05:47:55,981 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 341 SyntacticMatches, 47 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4564 ImplicationChecksByTransitivity, 11546.3ms TimeCoverageRelationStatistics Valid=818, Invalid=37402, Unknown=0, NotChecked=0, Total=38220 [2021-05-06 05:47:55,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-05-06 05:47:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2021-05-06 05:47:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 51 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-06 05:47:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2021-05-06 05:47:55,984 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 293 [2021-05-06 05:47:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:47:55,984 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2021-05-06 05:47:55,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 100 states, 100 states have (on average 1.06) internal successors, (106), 52 states have internal predecessors, (106), 49 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-05-06 05:47:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2021-05-06 05:47:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-05-06 05:47:55,986 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:47:55,986 INFO L523 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:47:56,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:47:56,201 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:47:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:47:56,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1295768180, now seen corresponding path program 48 times [2021-05-06 05:47:56,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:47:56,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133708795] [2021-05-06 05:47:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:47:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:47:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:47:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:47:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:47:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:47:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:47:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:47:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:47:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:47:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:47:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:47:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:47:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:47:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:47:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:47:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:47:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:47:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:47:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:47:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:47:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:47:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:47:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:47:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:47:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:47:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:47:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:47:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:47:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:47:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:47:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:47:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:47:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:47:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:47:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:47:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:47:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:47:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:47:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:47:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:47:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:47:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:47:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:47:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:47:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:47:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:47:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:47:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:47:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:47:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6816 backedges. 0 proven. 3432 refuted. 0 times theorem prover too weak. 3384 trivial. 0 not checked. [2021-05-06 05:47:59,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:47:59,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133708795] [2021-05-06 05:47:59,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133708795] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:59,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039878537] [2021-05-06 05:47:59,800 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 05:48:16,443 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-05-06 05:48:16,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:48:16,459 WARN L261 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 516 conjunts are in the unsatisfiable core [2021-05-06 05:48:16,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:48:16,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:16,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:17,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:18,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:19,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:20,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 6816 backedges. 0 proven. 3432 refuted. 0 times theorem prover too weak. 3384 trivial. 0 not checked. [2021-05-06 05:48:21,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039878537] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:21,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:48:21,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 100] total 102 [2021-05-06 05:48:21,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190284245] [2021-05-06 05:48:21,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-05-06 05:48:21,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:48:21,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-05-06 05:48:21,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=10052, Unknown=0, NotChecked=0, Total=10302 [2021-05-06 05:48:21,367 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 53 states have internal predecessors, (108), 50 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-06 05:48:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:48:31,440 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2021-05-06 05:48:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-06 05:48:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 53 states have internal predecessors, (108), 50 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 299 [2021-05-06 05:48:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:48:31,442 INFO L225 Difference]: With dead ends: 164 [2021-05-06 05:48:31,442 INFO L226 Difference]: Without dead ends: 164 [2021-05-06 05:48:31,443 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 315 SyntacticMatches, 81 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4823 ImplicationChecksByTransitivity, 13185.7ms TimeCoverageRelationStatistics Valid=835, Invalid=38965, Unknown=0, NotChecked=0, Total=39800 [2021-05-06 05:48:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-06 05:48:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2021-05-06 05:48:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 107 states have (on average 1.0093457943925233) internal successors, (108), 107 states have internal predecessors, (108), 52 states have call successors, (52), 4 states have call predecessors, (52), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-05-06 05:48:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 210 transitions. [2021-05-06 05:48:31,446 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 210 transitions. Word has length 299 [2021-05-06 05:48:31,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:48:31,446 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 210 transitions. [2021-05-06 05:48:31,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 53 states have internal predecessors, (108), 50 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-05-06 05:48:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 210 transitions. [2021-05-06 05:48:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-05-06 05:48:31,447 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:48:31,448 INFO L523 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:48:31,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:48:31,654 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:48:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:48:31,655 INFO L82 PathProgramCache]: Analyzing trace with hash 732625689, now seen corresponding path program 49 times [2021-05-06 05:48:31,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:48:31,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584626742] [2021-05-06 05:48:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:48:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:48:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:48:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:48:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:48:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:48:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:48:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:48:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:48:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:48:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:48:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:48:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:48:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:48:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:48:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:48:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:48:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:48:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:48:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:48:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:48:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:48:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:48:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:48:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:48:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:48:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:48:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:48:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:48:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:48:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:48:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:48:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:48:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:48:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:48:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:48:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:48:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:48:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:48:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:48:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:48:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:48:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:48:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:48:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:48:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:48:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:48:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:48:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:48:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:48:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:48:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7105 backedges. 0 proven. 3577 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2021-05-06 05:48:35,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:48:35,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584626742] [2021-05-06 05:48:35,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584626742] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:35,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146748182] [2021-05-06 05:48:35,287 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 05:48:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:35,408 WARN L261 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 493 conjunts are in the unsatisfiable core [2021-05-06 05:48:35,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:48:35,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:35,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:36,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:37,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:38,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 7105 backedges. 0 proven. 3577 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2021-05-06 05:48:39,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146748182] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:39,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:48:39,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 102] total 104 [2021-05-06 05:48:39,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537156917] [2021-05-06 05:48:39,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-05-06 05:48:39,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:48:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-05-06 05:48:39,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=10457, Unknown=0, NotChecked=0, Total=10712 [2021-05-06 05:48:39,338 INFO L87 Difference]: Start difference. First operand 162 states and 210 transitions. Second operand has 104 states, 104 states have (on average 1.0576923076923077) internal successors, (110), 54 states have internal predecessors, (110), 51 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-05-06 05:48:49,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:48:49,933 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2021-05-06 05:48:49,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-06 05:48:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 1.0576923076923077) internal successors, (110), 54 states have internal predecessors, (110), 51 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 305 [2021-05-06 05:48:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:48:49,935 INFO L225 Difference]: With dead ends: 167 [2021-05-06 05:48:49,935 INFO L226 Difference]: Without dead ends: 167 [2021-05-06 05:48:49,936 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 355 SyntacticMatches, 49 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4954 ImplicationChecksByTransitivity, 12498.5ms TimeCoverageRelationStatistics Valid=852, Invalid=40560, Unknown=0, NotChecked=0, Total=41412 [2021-05-06 05:48:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-05-06 05:48:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2021-05-06 05:48:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 109 states have (on average 1.0091743119266054) internal successors, (110), 109 states have internal predecessors, (110), 53 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-05-06 05:48:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2021-05-06 05:48:49,939 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 305 [2021-05-06 05:48:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:48:49,939 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2021-05-06 05:48:49,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 104 states, 104 states have (on average 1.0576923076923077) internal successors, (110), 54 states have internal predecessors, (110), 51 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-05-06 05:48:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2021-05-06 05:48:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-05-06 05:48:49,941 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:48:49,941 INFO L523 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:48:50,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-05-06 05:48:50,157 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:48:50,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:48:50,157 INFO L82 PathProgramCache]: Analyzing trace with hash 447106046, now seen corresponding path program 50 times [2021-05-06 05:48:50,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:48:50,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396429369] [2021-05-06 05:48:50,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:48:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:48:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:53,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:48:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:53,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:48:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:48:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:48:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:48:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:48:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:48:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:48:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:48:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:48:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:48:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:48:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:48:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:48:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:48:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:48:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:48:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:48:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:48:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:48:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:48:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:48:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:48:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:48:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:48:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:48:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:48:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:48:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:48:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:48:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:48:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:48:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:48:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:48:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:48:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:48:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:48:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:48:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:48:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:48:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:48:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:48:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:48:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:48:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:48:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:48:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:48:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:48:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:48:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:48:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7400 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 3675 trivial. 0 not checked. [2021-05-06 05:48:54,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:48:54,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396429369] [2021-05-06 05:48:54,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396429369] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:54,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402802283] [2021-05-06 05:48:54,087 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 05:48:54,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:48:54,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:48:54,227 WARN L261 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 503 conjunts are in the unsatisfiable core [2021-05-06 05:48:54,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:48:54,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:54,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:55,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:56,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:57,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:48:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 7400 backedges. 0 proven. 3725 refuted. 0 times theorem prover too weak. 3675 trivial. 0 not checked. [2021-05-06 05:48:58,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402802283] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:58,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:48:58,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104] total 106 [2021-05-06 05:48:58,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248257178] [2021-05-06 05:48:58,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-05-06 05:48:58,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:48:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-05-06 05:48:58,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=10870, Unknown=0, NotChecked=0, Total=11130 [2021-05-06 05:48:58,243 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand has 106 states, 106 states have (on average 1.0566037735849056) internal successors, (112), 55 states have internal predecessors, (112), 52 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-05-06 05:49:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:49:09,228 INFO L93 Difference]: Finished difference Result 170 states and 221 transitions. [2021-05-06 05:49:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-05-06 05:49:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 1.0566037735849056) internal successors, (112), 55 states have internal predecessors, (112), 52 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 311 [2021-05-06 05:49:09,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:49:09,230 INFO L225 Difference]: With dead ends: 170 [2021-05-06 05:49:09,230 INFO L226 Difference]: Without dead ends: 170 [2021-05-06 05:49:09,231 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 362 SyntacticMatches, 50 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5155 ImplicationChecksByTransitivity, 12998.1ms TimeCoverageRelationStatistics Valid=869, Invalid=42187, Unknown=0, NotChecked=0, Total=43056 [2021-05-06 05:49:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-06 05:49:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2021-05-06 05:49:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.009009009009009) internal successors, (112), 111 states have internal predecessors, (112), 54 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-05-06 05:49:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2021-05-06 05:49:09,234 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 311 [2021-05-06 05:49:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:49:09,234 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2021-05-06 05:49:09,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 106 states, 106 states have (on average 1.0566037735849056) internal successors, (112), 55 states have internal predecessors, (112), 52 states have call successors, (54), 3 states have call predecessors, (54), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-05-06 05:49:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2021-05-06 05:49:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-05-06 05:49:09,236 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:49:09,236 INFO L523 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:49:09,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:49:09,448 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:49:09,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:49:09,448 INFO L82 PathProgramCache]: Analyzing trace with hash -438788829, now seen corresponding path program 51 times [2021-05-06 05:49:09,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:49:09,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034410051] [2021-05-06 05:49:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:49:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:49:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:49:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:49:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:49:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:49:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:49:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:49:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:49:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:49:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:49:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:49:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:49:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:49:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:49:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:49:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:49:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:49:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:49:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:49:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:49:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:49:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:49:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:49:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:49:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:49:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:49:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:49:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:49:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:49:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:49:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:49:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:49:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:49:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:49:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:49:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:49:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:49:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:49:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:49:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:49:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:49:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:49:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:49:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:49:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:49:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:49:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:49:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:49:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:49:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:49:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:49:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-05-06 05:49:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7701 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 3825 trivial. 0 not checked. [2021-05-06 05:49:13,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:49:13,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034410051] [2021-05-06 05:49:13,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034410051] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:49:13,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952199222] [2021-05-06 05:49:13,333 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 05:49:35,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-05-06 05:49:35,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:49:35,938 WARN L261 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 558 conjunts are in the unsatisfiable core [2021-05-06 05:49:35,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:49:36,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:36,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:37,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:38,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:39,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:40,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7701 backedges. 0 proven. 3876 refuted. 0 times theorem prover too weak. 3825 trivial. 0 not checked. [2021-05-06 05:49:41,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952199222] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:49:41,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:49:41,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 106] total 108 [2021-05-06 05:49:41,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085292973] [2021-05-06 05:49:41,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-05-06 05:49:41,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:49:41,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-05-06 05:49:41,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=11291, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 05:49:41,911 INFO L87 Difference]: Start difference. First operand 168 states and 218 transitions. Second operand has 108 states, 108 states have (on average 1.0555555555555556) internal successors, (114), 56 states have internal predecessors, (114), 53 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-05-06 05:49:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:49:53,321 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2021-05-06 05:49:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-05-06 05:49:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 1.0555555555555556) internal successors, (114), 56 states have internal predecessors, (114), 53 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 317 [2021-05-06 05:49:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:49:53,322 INFO L225 Difference]: With dead ends: 173 [2021-05-06 05:49:53,322 INFO L226 Difference]: Without dead ends: 173 [2021-05-06 05:49:53,324 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 326 SyntacticMatches, 94 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5444 ImplicationChecksByTransitivity, 15161.2ms TimeCoverageRelationStatistics Valid=886, Invalid=43846, Unknown=0, NotChecked=0, Total=44732 [2021-05-06 05:49:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-05-06 05:49:53,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 171. [2021-05-06 05:49:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 113 states have (on average 1.008849557522124) internal successors, (114), 113 states have internal predecessors, (114), 55 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-05-06 05:49:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 222 transitions. [2021-05-06 05:49:53,327 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 222 transitions. Word has length 317 [2021-05-06 05:49:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:49:53,327 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 222 transitions. [2021-05-06 05:49:53,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 1.0555555555555556) internal successors, (114), 56 states have internal predecessors, (114), 53 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-05-06 05:49:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 222 transitions. [2021-05-06 05:49:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-05-06 05:49:53,328 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:49:53,328 INFO L523 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:49:53,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-05-06 05:49:53,535 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:49:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:49:53,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2121220472, now seen corresponding path program 52 times [2021-05-06 05:49:53,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:49:53,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412033214] [2021-05-06 05:49:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:49:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:49:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:49:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:49:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:49:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:49:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:49:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:49:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:49:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:49:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:49:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:49:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:49:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:49:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:49:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:49:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:49:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:49:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:49:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:49:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:49:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:49:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:49:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:49:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:49:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:49:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:49:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:49:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:49:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:49:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:49:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:49:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:49:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:49:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:49:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:49:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:49:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:49:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:49:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:49:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:49:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:49:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:49:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:49:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:49:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:49:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:49:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:49:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:49:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:49:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:49:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:49:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-05-06 05:49:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-05-06 05:49:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:49:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 8008 backedges. 0 proven. 4030 refuted. 0 times theorem prover too weak. 3978 trivial. 0 not checked. [2021-05-06 05:49:57,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:49:57,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412033214] [2021-05-06 05:49:57,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412033214] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:49:57,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3540364] [2021-05-06 05:49:57,650 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 05:49:57,739 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:49:57,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:49:57,746 WARN L261 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 525 conjunts are in the unsatisfiable core [2021-05-06 05:49:57,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:49:57,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:57,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:58,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:49:59,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:00,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:01,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:02,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:02,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:02,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:02,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8008 backedges. 0 proven. 4030 refuted. 0 times theorem prover too weak. 3978 trivial. 0 not checked. [2021-05-06 05:50:02,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3540364] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:50:02,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:50:02,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 110] total 112 [2021-05-06 05:50:02,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386023591] [2021-05-06 05:50:02,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states [2021-05-06 05:50:02,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:50:02,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2021-05-06 05:50:02,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=12158, Unknown=0, NotChecked=0, Total=12432 [2021-05-06 05:50:02,164 INFO L87 Difference]: Start difference. First operand 171 states and 222 transitions. Second operand has 112 states, 112 states have (on average 1.0535714285714286) internal successors, (118), 58 states have internal predecessors, (118), 55 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-05-06 05:50:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:50:14,621 INFO L93 Difference]: Finished difference Result 176 states and 229 transitions. [2021-05-06 05:50:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-05-06 05:50:14,622 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 1.0535714285714286) internal successors, (118), 58 states have internal predecessors, (118), 55 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 323 [2021-05-06 05:50:14,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:50:14,622 INFO L225 Difference]: With dead ends: 176 [2021-05-06 05:50:14,622 INFO L226 Difference]: Without dead ends: 176 [2021-05-06 05:50:14,624 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 374 SyntacticMatches, 52 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5573 ImplicationChecksByTransitivity, 14306.3ms TimeCoverageRelationStatistics Valid=907, Invalid=46399, Unknown=0, NotChecked=0, Total=47306 [2021-05-06 05:50:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-05-06 05:50:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2021-05-06 05:50:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 56 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-05-06 05:50:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 226 transitions. [2021-05-06 05:50:14,627 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 226 transitions. Word has length 323 [2021-05-06 05:50:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:50:14,627 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 226 transitions. [2021-05-06 05:50:14,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 112 states, 112 states have (on average 1.0535714285714286) internal successors, (118), 58 states have internal predecessors, (118), 55 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-05-06 05:50:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 226 transitions. [2021-05-06 05:50:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-05-06 05:50:14,629 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:50:14,629 INFO L523 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:50:14,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-05-06 05:50:14,841 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:50:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:50:14,841 INFO L82 PathProgramCache]: Analyzing trace with hash -4095955, now seen corresponding path program 53 times [2021-05-06 05:50:14,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:50:14,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717032445] [2021-05-06 05:50:14,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:50:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:50:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:50:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:50:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:50:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:50:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:50:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:50:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:50:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:50:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:50:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:50:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:50:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:50:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:50:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:50:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:50:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:50:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:50:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:50:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:50:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:50:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:50:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:50:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:50:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:50:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:50:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:50:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:50:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:50:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:50:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:50:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:50:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:50:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:50:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:50:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:50:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:50:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:50:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:50:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:50:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:50:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:50:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:50:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:50:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:50:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:50:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:50:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:50:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:50:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:50:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:50:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-05-06 05:50:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-05-06 05:50:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-05-06 05:50:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8321 backedges. 0 proven. 4187 refuted. 0 times theorem prover too weak. 4134 trivial. 0 not checked. [2021-05-06 05:50:19,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:50:19,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717032445] [2021-05-06 05:50:19,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717032445] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:50:19,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125652959] [2021-05-06 05:50:19,196 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