/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_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 05:38:05,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 05:38:05,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 05:38:06,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 05:38:06,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 05:38:06,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 05:38:06,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 05:38:06,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 05:38:06,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 05:38:06,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 05:38:06,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 05:38:06,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 05:38:06,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 05:38:06,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 05:38:06,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 05:38:06,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 05:38:06,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 05:38:06,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 05:38:06,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 05:38:06,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 05:38:06,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 05:38:06,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 05:38:06,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 05:38:06,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 05:38:06,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 05:38:06,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 05:38:06,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 05:38:06,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 05:38:06,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 05:38:06,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 05:38:06,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 05:38:06,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 05:38:06,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 05:38:06,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 05:38:06,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 05:38:06,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 05:38:06,071 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 05:38:06,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 05:38:06,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 05:38:06,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 05:38:06,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 05:38:06,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 05:38:06,387 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 05:38:06,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2021-05-06 05:38:06,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88100cfc1/5ebc3d188ed641039233fa7eaf66401e/FLAGa2346f1b2 [2021-05-06 05:38:06,845 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 05:38:06,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/functions_1-2.c [2021-05-06 05:38:06,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88100cfc1/5ebc3d188ed641039233fa7eaf66401e/FLAGa2346f1b2 [2021-05-06 05:38:06,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88100cfc1/5ebc3d188ed641039233fa7eaf66401e [2021-05-06 05:38:06,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 05:38:06,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 05:38:06,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 05:38:06,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 05:38:06,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 05:38:06,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:38:06" (1/1) ... [2021-05-06 05:38:06,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5981dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:06, skipping insertion in model container [2021-05-06 05:38:06,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 05:38:06" (1/1) ... [2021-05-06 05:38:06,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 05:38:06,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 05:38:07,001 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_1-2.c[325,338] [2021-05-06 05:38:07,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:38:07,017 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 05:38:07,075 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_1-2.c[325,338] [2021-05-06 05:38:07,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 05:38:07,094 INFO L208 MainTranslator]: Completed translation [2021-05-06 05:38:07,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07 WrapperNode [2021-05-06 05:38:07,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 05:38:07,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 05:38:07,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 05:38:07,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 05:38:07,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 05:38:07,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 05:38:07,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 05:38:07,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 05:38:07,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (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 05:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 05:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 05:38:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 05:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 05:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-05-06 05:38:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 05:38:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-05-06 05:38:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 05:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 05:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 05:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 05:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 05:38:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 05:38:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 05:38:07,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 05:38:07,494 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 05:38:07,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:38:07 BoogieIcfgContainer [2021-05-06 05:38:07,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 05:38:07,496 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 05:38:07,496 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 05:38:07,497 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 05:38:07,498 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:38:07" (1/1) ... [2021-05-06 05:38:07,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:38:07 BasicIcfg [2021-05-06 05:38:07,531 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 05:38:07,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 05:38:07,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 05:38:07,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 05:38:07,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 05:38:06" (1/4) ... [2021-05-06 05:38:07,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90bf208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:38:07, skipping insertion in model container [2021-05-06 05:38:07,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 05:38:07" (2/4) ... [2021-05-06 05:38:07,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90bf208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 05:38:07, skipping insertion in model container [2021-05-06 05:38:07,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 05:38:07" (3/4) ... [2021-05-06 05:38:07,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90bf208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 05:38:07, skipping insertion in model container [2021-05-06 05:38:07,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 05:38:07" (4/4) ... [2021-05-06 05:38:07,536 INFO L111 eAbstractionObserver]: Analyzing ICFG functions_1-2.cJordan [2021-05-06 05:38:07,540 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 05:38:07,542 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 05:38:07,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 05:38:07,600 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 05:38:07,600 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 05:38:07,600 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 05:38:07,600 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 05:38:07,600 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 05:38:07,600 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 05:38:07,600 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 05:38:07,600 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 05:38:07,620 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 05:38:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 05:38:07,625 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:07,626 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:07,626 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:07,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:07,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1565505021, now seen corresponding path program 1 times [2021-05-06 05:38:07,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:07,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330028169] [2021-05-06 05:38:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:07,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:07,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 05:38:07,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:07,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330028169] [2021-05-06 05:38:07,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330028169] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:38:07,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:38:07,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 05:38:07,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268747096] [2021-05-06 05:38:07,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 05:38:07,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:07,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 05:38:07,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:38:07,930 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 05:38:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:08,000 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-05-06 05:38:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 05:38:08,002 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 05:38:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:08,008 INFO L225 Difference]: With dead ends: 23 [2021-05-06 05:38:08,008 INFO L226 Difference]: Without dead ends: 17 [2021-05-06 05:38:08,009 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 05:38:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-06 05:38:08,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-06 05:38:08,036 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 05:38:08,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-05-06 05:38:08,038 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2021-05-06 05:38:08,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:08,038 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-05-06 05:38:08,038 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 05:38:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-05-06 05:38:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-06 05:38:08,039 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:08,040 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 05:38:08,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 05:38:08,040 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:08,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1564581500, now seen corresponding path program 1 times [2021-05-06 05:38:08,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:08,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121654076] [2021-05-06 05:38:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,191 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 05:38:08,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:08,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121654076] [2021-05-06 05:38:08,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121654076] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 05:38:08,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 05:38:08,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 05:38:08,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188363477] [2021-05-06 05:38:08,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 05:38:08,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:08,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 05:38:08,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 05:38:08,194 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 05:38:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:08,257 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-05-06 05:38:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 05:38:08,259 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 05:38:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:08,260 INFO L225 Difference]: With dead ends: 20 [2021-05-06 05:38:08,260 INFO L226 Difference]: Without dead ends: 20 [2021-05-06 05:38:08,261 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 05:38:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-06 05:38:08,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-05-06 05:38:08,267 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 05:38:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-06 05:38:08,268 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-05-06 05:38:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:08,268 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-06 05:38:08,268 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 05:38:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-06 05:38:08,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 05:38:08,269 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:08,269 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 05:38:08,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 05:38:08,270 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:08,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:08,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1890585047, now seen corresponding path program 1 times [2021-05-06 05:38:08,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:08,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694024996] [2021-05-06 05:38:08,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,450 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 05:38:08,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:08,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694024996] [2021-05-06 05:38:08,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694024996] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:08,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509100718] [2021-05-06 05:38:08,451 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 05:38:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:08,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-06 05:38:08,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:08,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:08,645 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 05:38:08,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509100718] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:08,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:08,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-05-06 05:38:08,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211945902] [2021-05-06 05:38:08,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 05:38:08,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:08,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 05:38:08,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-05-06 05:38:08,649 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 05:38:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:08,844 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-05-06 05:38:08,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 05:38:08,845 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 05:38:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:08,846 INFO L225 Difference]: With dead ends: 23 [2021-05-06 05:38:08,846 INFO L226 Difference]: Without dead ends: 23 [2021-05-06 05:38:08,847 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 190.9ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-05-06 05:38:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-06 05:38:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-05-06 05:38:08,851 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 05:38:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-05-06 05:38:08,852 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2021-05-06 05:38:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:08,852 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-05-06 05:38:08,852 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 05:38:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-05-06 05:38:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-06 05:38:08,854 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:08,854 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 05:38:09,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-06 05:38:09,075 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:09,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1036434190, now seen corresponding path program 2 times [2021-05-06 05:38:09,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:09,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320762896] [2021-05-06 05:38:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,193 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 05:38:09,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:09,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320762896] [2021-05-06 05:38:09,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320762896] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:09,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251323314] [2021-05-06 05:38:09,194 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 05:38:09,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:09,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:09,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-06 05:38:09,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:09,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,346 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 05:38:09,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251323314] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:09,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:09,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2021-05-06 05:38:09,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871504344] [2021-05-06 05:38:09,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-06 05:38:09,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:09,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-06 05:38:09,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-05-06 05:38:09,347 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 05:38:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:09,548 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-05-06 05:38:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 05:38:09,549 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 05:38:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:09,549 INFO L225 Difference]: With dead ends: 26 [2021-05-06 05:38:09,549 INFO L226 Difference]: Without dead ends: 26 [2021-05-06 05:38:09,550 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 203.8ms TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:38:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-06 05:38:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-05-06 05:38:09,552 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 05:38:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-05-06 05:38:09,552 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 23 [2021-05-06 05:38:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:09,553 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-05-06 05:38:09,553 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 05:38:09,553 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-05-06 05:38:09,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 05:38:09,553 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:09,553 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 05:38:09,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:09,771 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:09,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1393393715, now seen corresponding path program 3 times [2021-05-06 05:38:09,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:09,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933916195] [2021-05-06 05:38:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:09,900 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 05:38:09,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:09,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933916195] [2021-05-06 05:38:09,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933916195] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:09,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642410463] [2021-05-06 05:38:09,900 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 05:38:09,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-06 05:38:09,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:09,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-06 05:38:09,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:09,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:09,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,053 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 05:38:10,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642410463] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:10,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:10,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 12 [2021-05-06 05:38:10,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712111826] [2021-05-06 05:38:10,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-06 05:38:10,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:10,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-06 05:38:10,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-05-06 05:38:10,055 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 05:38:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:10,353 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-05-06 05:38:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-06 05:38:10,353 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 05:38:10,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:10,354 INFO L225 Difference]: With dead ends: 29 [2021-05-06 05:38:10,354 INFO L226 Difference]: Without dead ends: 29 [2021-05-06 05:38:10,354 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 306.6ms TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:38:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-06 05:38:10,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-05-06 05:38:10,356 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 05:38:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-05-06 05:38:10,357 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 29 [2021-05-06 05:38:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:10,357 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-05-06 05:38:10,357 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 05:38:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-05-06 05:38:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-06 05:38:10,358 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:10,358 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 05:38:10,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:10,576 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:10,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:10,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1397549672, now seen corresponding path program 4 times [2021-05-06 05:38:10,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:10,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96034079] [2021-05-06 05:38:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:10,723 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 05:38:10,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:10,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96034079] [2021-05-06 05:38:10,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96034079] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:10,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376089334] [2021-05-06 05:38:10,724 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 05:38:10,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:38:10,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:10,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 43 conjunts are in the unsatisfiable core [2021-05-06 05:38:10,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:10,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:10,932 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 05:38:10,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376089334] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:10,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:10,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 14 [2021-05-06 05:38:10,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748453830] [2021-05-06 05:38:10,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-06 05:38:10,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:10,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-06 05:38:10,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-05-06 05:38:10,934 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 9 states have internal predecessors, (20), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 05:38:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:11,297 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2021-05-06 05:38:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-06 05:38:11,297 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 9 states have internal predecessors, (20), 6 states have call successors, (8), 3 states have call predecessors, (8), 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 05:38:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:11,298 INFO L225 Difference]: With dead ends: 32 [2021-05-06 05:38:11,298 INFO L226 Difference]: Without dead ends: 32 [2021-05-06 05:38:11,298 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 366.2ms TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-05-06 05:38:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-05-06 05:38:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2021-05-06 05:38:11,301 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 05:38:11,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-05-06 05:38:11,319 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 35 [2021-05-06 05:38:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:11,319 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-05-06 05:38:11,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 9 states have internal predecessors, (20), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 05:38:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-05-06 05:38:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-06 05:38:11,320 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:11,320 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 05:38:11,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:11,538 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:11,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:11,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1441418045, now seen corresponding path program 5 times [2021-05-06 05:38:11,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:11,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682246531] [2021-05-06 05:38:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:11,734 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 05:38:11,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:11,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682246531] [2021-05-06 05:38:11,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682246531] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:11,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858845585] [2021-05-06 05:38:11,734 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 05:38:11,795 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-06 05:38:11,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:11,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-06 05:38:11,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:11,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:11,952 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 05:38:11,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858845585] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:11,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:11,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 16 [2021-05-06 05:38:11,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116956897] [2021-05-06 05:38:11,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-06 05:38:11,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:11,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-06 05:38:11,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-05-06 05:38:11,954 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 05:38:12,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:12,417 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-05-06 05:38:12,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-06 05:38:12,417 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 05:38:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:12,418 INFO L225 Difference]: With dead ends: 35 [2021-05-06 05:38:12,418 INFO L226 Difference]: Without dead ends: 35 [2021-05-06 05:38:12,418 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 463.3ms TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:38:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-06 05:38:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-05-06 05:38:12,421 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 05:38:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2021-05-06 05:38:12,422 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 41 [2021-05-06 05:38:12,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:12,422 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-05-06 05:38:12,422 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 05:38:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-05-06 05:38:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-06 05:38:12,423 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:12,423 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 05:38:12,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-05-06 05:38:12,643 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:12,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:12,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1131810526, now seen corresponding path program 6 times [2021-05-06 05:38:12,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:12,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539088376] [2021-05-06 05:38:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:12,914 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 05:38:12,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:12,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539088376] [2021-05-06 05:38:12,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539088376] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:12,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733135799] [2021-05-06 05:38:12,914 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 05:38:13,051 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-06 05:38:13,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:13,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 63 conjunts are in the unsatisfiable core [2021-05-06 05:38:13,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:13,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:13,231 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 05:38:13,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733135799] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:13,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:13,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 18 [2021-05-06 05:38:13,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681581028] [2021-05-06 05:38:13,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-06 05:38:13,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:13,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-06 05:38:13,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-06 05:38:13,233 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 05:38:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:13,834 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-05-06 05:38:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-06 05:38:13,834 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 05:38:13,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:13,835 INFO L225 Difference]: With dead ends: 38 [2021-05-06 05:38:13,835 INFO L226 Difference]: Without dead ends: 38 [2021-05-06 05:38:13,836 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 626.6ms TimeCoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:38:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-06 05:38:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-05-06 05:38:13,839 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 05:38:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-05-06 05:38:13,839 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 47 [2021-05-06 05:38:13,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:13,840 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-05-06 05:38:13,840 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 05:38:13,840 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-05-06 05:38:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-06 05:38:13,841 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:13,841 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 05:38:14,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:14,061 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:14,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:14,061 INFO L82 PathProgramCache]: Analyzing trace with hash 638375751, now seen corresponding path program 7 times [2021-05-06 05:38:14,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:14,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584433626] [2021-05-06 05:38:14,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,299 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 05:38:14,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:14,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584433626] [2021-05-06 05:38:14,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584433626] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:14,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441086470] [2021-05-06 05:38:14,299 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 05:38:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:14,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 73 conjunts are in the unsatisfiable core [2021-05-06 05:38:14,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:14,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:14,577 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 05:38:14,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441086470] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:14,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:14,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 20 [2021-05-06 05:38:14,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207158724] [2021-05-06 05:38:14,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-06 05:38:14,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:14,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-06 05:38:14,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-05-06 05:38:14,579 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 05:38:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:15,224 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2021-05-06 05:38:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-06 05:38:15,224 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 05:38:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:15,225 INFO L225 Difference]: With dead ends: 41 [2021-05-06 05:38:15,225 INFO L226 Difference]: Without dead ends: 41 [2021-05-06 05:38:15,226 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 683.0ms TimeCoverageRelationStatistics Valid=138, Invalid=1122, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:38:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-06 05:38:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-05-06 05:38:15,228 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 05:38:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-05-06 05:38:15,230 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 53 [2021-05-06 05:38:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:15,230 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-05-06 05:38:15,230 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 05:38:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-05-06 05:38:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-06 05:38:15,231 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:15,231 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 05:38:15,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:15,447 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:15,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1687276972, now seen corresponding path program 8 times [2021-05-06 05:38:15,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:15,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55106160] [2021-05-06 05:38:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:15,712 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 05:38:15,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:15,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55106160] [2021-05-06 05:38:15,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55106160] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:15,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471900581] [2021-05-06 05:38:15,712 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 05:38:15,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:15,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:15,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-06 05:38:15,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:15,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:15,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:16,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:16,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:16,040 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 05:38:16,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471900581] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:16,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:16,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 22 [2021-05-06 05:38:16,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838217323] [2021-05-06 05:38:16,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-06 05:38:16,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:16,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-06 05:38:16,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-05-06 05:38:16,042 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 05:38:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:16,885 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2021-05-06 05:38:16,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-06 05:38:16,886 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 05:38:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:16,886 INFO L225 Difference]: With dead ends: 44 [2021-05-06 05:38:16,886 INFO L226 Difference]: Without dead ends: 44 [2021-05-06 05:38:16,887 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 870.5ms TimeCoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:38:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-05-06 05:38:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2021-05-06 05:38:16,889 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 05:38:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-05-06 05:38:16,890 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 59 [2021-05-06 05:38:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:16,890 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-05-06 05:38:16,890 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 05:38:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-05-06 05:38:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-05-06 05:38:16,891 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:16,891 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 05:38:17,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-06 05:38:17,105 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:17,105 INFO L82 PathProgramCache]: Analyzing trace with hash -874797999, now seen corresponding path program 9 times [2021-05-06 05:38:17,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:17,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583722493] [2021-05-06 05:38:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:17,471 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 05:38:17,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:17,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583722493] [2021-05-06 05:38:17,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583722493] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:17,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649971104] [2021-05-06 05:38:17,472 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 05:38:17,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-06 05:38:17,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:17,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 96 conjunts are in the unsatisfiable core [2021-05-06 05:38:17,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:17,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:17,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:18,310 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 05:38:18,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649971104] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:18,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:18,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 24 [2021-05-06 05:38:18,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791572012] [2021-05-06 05:38:18,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-06 05:38:18,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:18,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-06 05:38:18,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-05-06 05:38:18,312 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 05:38:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:19,331 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-05-06 05:38:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-06 05:38:19,332 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 05:38:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:19,332 INFO L225 Difference]: With dead ends: 47 [2021-05-06 05:38:19,332 INFO L226 Difference]: Without dead ends: 47 [2021-05-06 05:38:19,333 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 72 SyntacticMatches, 12 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1104.6ms TimeCoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:38:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-06 05:38:19,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-05-06 05:38:19,336 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 05:38:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2021-05-06 05:38:19,337 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 65 [2021-05-06 05:38:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:19,337 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-05-06 05:38:19,337 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 05:38:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2021-05-06 05:38:19,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-06 05:38:19,338 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:19,338 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 05:38:19,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:19,544 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:19,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1716595510, now seen corresponding path program 10 times [2021-05-06 05:38:19,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:19,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908788816] [2021-05-06 05:38:19,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:19,946 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 05:38:19,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:19,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908788816] [2021-05-06 05:38:19,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908788816] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:19,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195541031] [2021-05-06 05:38:19,947 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 05:38:19,996 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:38:19,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:19,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 103 conjunts are in the unsatisfiable core [2021-05-06 05:38:19,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:20,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:20,368 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 05:38:20,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195541031] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:20,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:20,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 26 [2021-05-06 05:38:20,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357268803] [2021-05-06 05:38:20,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-06 05:38:20,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:20,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-06 05:38:20,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-05-06 05:38:20,370 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 15 states have internal predecessors, (32), 12 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-06 05:38:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:21,448 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2021-05-06 05:38:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-06 05:38:21,448 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 15 states have internal predecessors, (32), 12 states have call successors, (14), 3 states have call predecessors, (14), 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 05:38:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:21,449 INFO L225 Difference]: With dead ends: 50 [2021-05-06 05:38:21,449 INFO L226 Difference]: Without dead ends: 50 [2021-05-06 05:38:21,450 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 82 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1175.9ms TimeCoverageRelationStatistics Valid=189, Invalid=2067, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 05:38:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-05-06 05:38:21,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-05-06 05:38:21,457 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 05:38:21,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2021-05-06 05:38:21,457 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 71 [2021-05-06 05:38:21,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:21,458 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2021-05-06 05:38:21,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 15 states have internal predecessors, (32), 12 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-05-06 05:38:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2021-05-06 05:38:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-05-06 05:38:21,459 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:21,459 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 05:38:21,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:21,677 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:21,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1778201179, now seen corresponding path program 11 times [2021-05-06 05:38:21,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:21,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613181169] [2021-05-06 05:38:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:22,116 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 05:38:22,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:22,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613181169] [2021-05-06 05:38:22,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613181169] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:22,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528563563] [2021-05-06 05:38:22,116 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 05:38:22,539 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-06 05:38:22,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:22,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 113 conjunts are in the unsatisfiable core [2021-05-06 05:38:22,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:22,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:22,920 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 05:38:22,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528563563] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:22,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:22,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 28 [2021-05-06 05:38:22,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814559746] [2021-05-06 05:38:22,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-06 05:38:22,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:22,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-06 05:38:22,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-06 05:38:22,923 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 05:38:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:24,213 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2021-05-06 05:38:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-06 05:38:24,214 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 05:38:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:24,216 INFO L225 Difference]: With dead ends: 53 [2021-05-06 05:38:24,216 INFO L226 Difference]: Without dead ends: 53 [2021-05-06 05:38:24,217 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 89 SyntacticMatches, 11 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1358.4ms TimeCoverageRelationStatistics Valid=206, Invalid=2446, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:38:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-06 05:38:24,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2021-05-06 05:38:24,231 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 05:38:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2021-05-06 05:38:24,232 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 77 [2021-05-06 05:38:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:24,232 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2021-05-06 05:38:24,232 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 05:38:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2021-05-06 05:38:24,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-06 05:38:24,234 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:24,234 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 05:38:24,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-06 05:38:24,439 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:24,441 INFO L82 PathProgramCache]: Analyzing trace with hash -309425728, now seen corresponding path program 12 times [2021-05-06 05:38:24,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:24,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224893898] [2021-05-06 05:38:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:24,942 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 05:38:24,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:24,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224893898] [2021-05-06 05:38:24,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224893898] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:24,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954525563] [2021-05-06 05:38:24,942 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 05:38:25,188 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-06 05:38:25,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:25,194 WARN L261 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 127 conjunts are in the unsatisfiable core [2021-05-06 05:38:25,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:25,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:25,651 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 05:38:25,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954525563] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:25,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:25,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 28] total 30 [2021-05-06 05:38:25,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235866618] [2021-05-06 05:38:25,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-06 05:38:25,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:25,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-06 05:38:25,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=800, Unknown=0, NotChecked=0, Total=870 [2021-05-06 05:38:25,653 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 30 states, 30 states have (on average 1.2) internal successors, (36), 17 states have internal predecessors, (36), 14 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-06 05:38:27,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:27,071 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2021-05-06 05:38:27,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-06 05:38:27,071 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.2) internal successors, (36), 17 states have internal predecessors, (36), 14 states have call successors, (16), 3 states have call predecessors, (16), 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 05:38:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:27,072 INFO L225 Difference]: With dead ends: 56 [2021-05-06 05:38:27,072 INFO L226 Difference]: Without dead ends: 56 [2021-05-06 05:38:27,073 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 92 SyntacticMatches, 16 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1569.9ms TimeCoverageRelationStatistics Valid=223, Invalid=2857, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:38:27,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-05-06 05:38:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-05-06 05:38:27,075 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 05:38:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2021-05-06 05:38:27,075 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 83 [2021-05-06 05:38:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:27,075 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2021-05-06 05:38:27,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.2) internal successors, (36), 17 states have internal predecessors, (36), 14 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-05-06 05:38:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2021-05-06 05:38:27,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-05-06 05:38:27,076 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:27,076 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 05:38:27,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-05-06 05:38:27,281 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash -581435035, now seen corresponding path program 13 times [2021-05-06 05:38:27,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:27,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768203109] [2021-05-06 05:38:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,831 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 05:38:27,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:27,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768203109] [2021-05-06 05:38:27,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768203109] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:27,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803155023] [2021-05-06 05:38:27,832 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 05:38:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:27,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 133 conjunts are in the unsatisfiable core [2021-05-06 05:38:27,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:27,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:27,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:28,376 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 05:38:28,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803155023] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:28,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:28,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 32 [2021-05-06 05:38:28,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958324192] [2021-05-06 05:38:28,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-06 05:38:28,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:28,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-06 05:38:28,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=917, Unknown=0, NotChecked=0, Total=992 [2021-05-06 05:38:28,378 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 05:38:29,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:29,862 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2021-05-06 05:38:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-06 05:38:29,863 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 05:38:29,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:29,863 INFO L225 Difference]: With dead ends: 59 [2021-05-06 05:38:29,863 INFO L226 Difference]: Without dead ends: 59 [2021-05-06 05:38:29,864 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 103 SyntacticMatches, 13 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1643.5ms TimeCoverageRelationStatistics Valid=240, Invalid=3300, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 05:38:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-06 05:38:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2021-05-06 05:38:29,866 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 05:38:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2021-05-06 05:38:29,867 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 89 [2021-05-06 05:38:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:29,867 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2021-05-06 05:38:29,868 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 05:38:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2021-05-06 05:38:29,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-06 05:38:29,868 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:29,869 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 05:38:30,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-05-06 05:38:30,087 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:30,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:30,087 INFO L82 PathProgramCache]: Analyzing trace with hash 810576202, now seen corresponding path program 14 times [2021-05-06 05:38:30,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:30,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780702438] [2021-05-06 05:38:30,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:30,720 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 05:38:30,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:30,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780702438] [2021-05-06 05:38:30,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780702438] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:30,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712588692] [2021-05-06 05:38:30,721 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 05:38:30,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:30,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:30,867 WARN L261 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 143 conjunts are in the unsatisfiable core [2021-05-06 05:38:30,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:30,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:30,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:31,399 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 05:38:31,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712588692] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:31,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:31,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 34 [2021-05-06 05:38:31,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038051311] [2021-05-06 05:38:31,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-06 05:38:31,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-06 05:38:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-05-06 05:38:31,400 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 05:38:33,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:33,032 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2021-05-06 05:38:33,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-06 05:38:33,033 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 05:38:33,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:33,034 INFO L225 Difference]: With dead ends: 62 [2021-05-06 05:38:33,034 INFO L226 Difference]: Without dead ends: 62 [2021-05-06 05:38:33,035 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 110 SyntacticMatches, 14 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1855.9ms TimeCoverageRelationStatistics Valid=257, Invalid=3775, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:38:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-05-06 05:38:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2021-05-06 05:38:33,040 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 05:38:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2021-05-06 05:38:33,041 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 95 [2021-05-06 05:38:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:33,041 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2021-05-06 05:38:33,041 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 05:38:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2021-05-06 05:38:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-05-06 05:38:33,042 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:33,042 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 05:38:33,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:33,260 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:33,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:33,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1561497967, now seen corresponding path program 15 times [2021-05-06 05:38:33,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:33,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850000689] [2021-05-06 05:38:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:33,957 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 05:38:33,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:33,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850000689] [2021-05-06 05:38:33,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850000689] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:33,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645976001] [2021-05-06 05:38:33,958 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 05:38:34,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-05-06 05:38:34,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:34,562 WARN L261 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 164 conjunts are in the unsatisfiable core [2021-05-06 05:38:34,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:34,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:34,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:35,357 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 05:38:35,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645976001] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:35,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:35,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 36 [2021-05-06 05:38:35,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118189665] [2021-05-06 05:38:35,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-06 05:38:35,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:35,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-06 05:38:35,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2021-05-06 05:38:35,360 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 05:38:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:37,292 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2021-05-06 05:38:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-06 05:38:37,293 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 05:38:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:37,293 INFO L225 Difference]: With dead ends: 65 [2021-05-06 05:38:37,293 INFO L226 Difference]: Without dead ends: 65 [2021-05-06 05:38:37,294 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 111 SyntacticMatches, 21 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2296.8ms TimeCoverageRelationStatistics Valid=274, Invalid=4282, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:38:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-06 05:38:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-05-06 05:38:37,296 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 05:38:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2021-05-06 05:38:37,296 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 101 [2021-05-06 05:38:37,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:37,297 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2021-05-06 05:38:37,297 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 05:38:37,297 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2021-05-06 05:38:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-06 05:38:37,297 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:37,297 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 05:38:37,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-06 05:38:37,503 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:37,503 INFO L82 PathProgramCache]: Analyzing trace with hash 249383380, now seen corresponding path program 16 times [2021-05-06 05:38:37,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:37,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224547094] [2021-05-06 05:38:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:38,273 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 05:38:38,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:38,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224547094] [2021-05-06 05:38:38,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224547094] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:38,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942509289] [2021-05-06 05:38:38,273 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 05:38:38,334 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:38:38,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:38,336 WARN L261 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 163 conjunts are in the unsatisfiable core [2021-05-06 05:38:38,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:38,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:38,980 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 05:38:38,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942509289] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:38,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:38,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 38 [2021-05-06 05:38:38,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169433596] [2021-05-06 05:38:38,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-06 05:38:38,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:38,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-06 05:38:38,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1316, Unknown=0, NotChecked=0, Total=1406 [2021-05-06 05:38:38,982 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 38 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 21 states have internal predecessors, (44), 18 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-06 05:38:41,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:41,195 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-05-06 05:38:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-06 05:38:41,196 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 21 states have internal predecessors, (44), 18 states have call successors, (20), 3 states have call predecessors, (20), 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 05:38:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:41,196 INFO L225 Difference]: With dead ends: 68 [2021-05-06 05:38:41,197 INFO L226 Difference]: Without dead ends: 68 [2021-05-06 05:38:41,198 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 124 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2439.5ms TimeCoverageRelationStatistics Valid=291, Invalid=4821, Unknown=0, NotChecked=0, Total=5112 [2021-05-06 05:38:41,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-05-06 05:38:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-05-06 05:38:41,199 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 05:38:41,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 82 transitions. [2021-05-06 05:38:41,200 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 82 transitions. Word has length 107 [2021-05-06 05:38:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:41,200 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 82 transitions. [2021-05-06 05:38:41,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 21 states have internal predecessors, (44), 18 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-05-06 05:38:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2021-05-06 05:38:41,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-06 05:38:41,201 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:41,201 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 05:38:41,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-06 05:38:41,418 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash 445866617, now seen corresponding path program 17 times [2021-05-06 05:38:41,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:41,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25978516] [2021-05-06 05:38:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:42,195 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 05:38:42,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:42,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25978516] [2021-05-06 05:38:42,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25978516] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:42,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536021194] [2021-05-06 05:38:42,196 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 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 05:38:44,046 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-05-06 05:38:44,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:44,050 WARN L261 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 184 conjunts are in the unsatisfiable core [2021-05-06 05:38:44,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:44,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:44,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:45,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:45,066 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 05:38:45,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536021194] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:45,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:45,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 40 [2021-05-06 05:38:45,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067079576] [2021-05-06 05:38:45,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-06 05:38:45,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:45,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-06 05:38:45,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1465, Unknown=0, NotChecked=0, Total=1560 [2021-05-06 05:38:45,070 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 05:38:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:47,554 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2021-05-06 05:38:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-06 05:38:47,555 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 05:38:47,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:47,556 INFO L225 Difference]: With dead ends: 71 [2021-05-06 05:38:47,556 INFO L226 Difference]: Without dead ends: 71 [2021-05-06 05:38:47,557 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 120 SyntacticMatches, 28 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 2875.1ms TimeCoverageRelationStatistics Valid=308, Invalid=5392, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:38:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-05-06 05:38:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-05-06 05:38:47,559 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 05:38:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-05-06 05:38:47,560 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 113 [2021-05-06 05:38:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:47,560 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-05-06 05:38:47,560 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 05:38:47,560 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-05-06 05:38:47,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-06 05:38:47,561 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:47,561 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 05:38:47,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:47,766 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:47,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:47,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1279546530, now seen corresponding path program 18 times [2021-05-06 05:38:47,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:47,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081453885] [2021-05-06 05:38:47,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:48,639 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 05:38:48,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:48,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081453885] [2021-05-06 05:38:48,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081453885] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:48,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454463807] [2021-05-06 05:38:48,639 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 05:38:49,394 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-05-06 05:38:49,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:49,398 WARN L261 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 195 conjunts are in the unsatisfiable core [2021-05-06 05:38:49,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:49,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:49,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:50,704 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 05:38:50,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454463807] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:50,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:50,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 42 [2021-05-06 05:38:50,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038819766] [2021-05-06 05:38:50,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-06 05:38:50,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:50,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-06 05:38:50,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1622, Unknown=0, NotChecked=0, Total=1722 [2021-05-06 05:38:50,706 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 05:38:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:53,184 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2021-05-06 05:38:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-06 05:38:53,185 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 05:38:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:53,185 INFO L225 Difference]: With dead ends: 74 [2021-05-06 05:38:53,185 INFO L226 Difference]: Without dead ends: 74 [2021-05-06 05:38:53,187 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 126 SyntacticMatches, 30 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 3149.6ms TimeCoverageRelationStatistics Valid=325, Invalid=5995, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:38:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-05-06 05:38:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-05-06 05:38:53,188 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 05:38:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2021-05-06 05:38:53,189 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 119 [2021-05-06 05:38:53,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:53,189 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2021-05-06 05:38:53,189 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 05:38:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2021-05-06 05:38:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-05-06 05:38:53,190 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:53,190 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 05:38:53,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:53,394 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:53,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:53,395 INFO L82 PathProgramCache]: Analyzing trace with hash -511642493, now seen corresponding path program 19 times [2021-05-06 05:38:53,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:53,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084396391] [2021-05-06 05:38:53,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,253 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 05:38:54,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:54,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084396391] [2021-05-06 05:38:54,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084396391] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:54,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340901110] [2021-05-06 05:38:54,253 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 05:38:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:54,333 WARN L261 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 193 conjunts are in the unsatisfiable core [2021-05-06 05:38:54,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:54,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:54,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:55,249 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 05:38:55,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340901110] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:55,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:38:55,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 44 [2021-05-06 05:38:55,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769675054] [2021-05-06 05:38:55,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-06 05:38:55,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:38:55,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-06 05:38:55,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1787, Unknown=0, NotChecked=0, Total=1892 [2021-05-06 05:38:55,251 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 05:38:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:38:58,114 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2021-05-06 05:38:58,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-06 05:38:58,115 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 05:38:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:38:58,115 INFO L225 Difference]: With dead ends: 77 [2021-05-06 05:38:58,115 INFO L226 Difference]: Without dead ends: 77 [2021-05-06 05:38:58,116 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 145 SyntacticMatches, 19 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 3092.9ms TimeCoverageRelationStatistics Valid=342, Invalid=6630, Unknown=0, NotChecked=0, Total=6972 [2021-05-06 05:38:58,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-05-06 05:38:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2021-05-06 05:38:58,118 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 05:38:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 94 transitions. [2021-05-06 05:38:58,119 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 94 transitions. Word has length 125 [2021-05-06 05:38:58,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:38:58,119 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 94 transitions. [2021-05-06 05:38:58,119 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 05:38:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 94 transitions. [2021-05-06 05:38:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-06 05:38:58,120 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:38:58,120 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 05:38:58,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:38:58,328 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:38:58,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:38:58,345 INFO L82 PathProgramCache]: Analyzing trace with hash 867306984, now seen corresponding path program 20 times [2021-05-06 05:38:58,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:38:58,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132214283] [2021-05-06 05:38:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:38:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:38:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:38:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:38:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:38:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:38:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:38:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:38:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:38:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:38:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:38:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:38:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:38:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:38:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:38:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:38:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:38:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:38:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:38:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:38:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:38:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:38:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:38:59,499 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 05:38:59,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:38:59,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132214283] [2021-05-06 05:38:59,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132214283] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:38:59,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850800] [2021-05-06 05:38:59,500 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 05:38:59,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:38:59,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:38:59,614 WARN L261 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 203 conjunts are in the unsatisfiable core [2021-05-06 05:38:59,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:38:59,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:38:59,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:00,634 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 05:39:00,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850800] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:00,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:00,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44] total 46 [2021-05-06 05:39:00,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258207346] [2021-05-06 05:39:00,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-06 05:39:00,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:00,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-06 05:39:00,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1960, Unknown=0, NotChecked=0, Total=2070 [2021-05-06 05:39:00,635 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 05:39:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:03,605 INFO L93 Difference]: Finished difference Result 80 states and 101 transitions. [2021-05-06 05:39:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-06 05:39:03,605 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 05:39:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:03,606 INFO L225 Difference]: With dead ends: 80 [2021-05-06 05:39:03,606 INFO L226 Difference]: Without dead ends: 80 [2021-05-06 05:39:03,606 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 152 SyntacticMatches, 20 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 3461.8ms TimeCoverageRelationStatistics Valid=359, Invalid=7297, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:39:03,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-05-06 05:39:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-05-06 05:39:03,608 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 05:39:03,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 98 transitions. [2021-05-06 05:39:03,609 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 98 transitions. Word has length 131 [2021-05-06 05:39:03,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:03,609 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 98 transitions. [2021-05-06 05:39:03,609 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 05:39:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 98 transitions. [2021-05-06 05:39:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-05-06 05:39:03,609 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:03,610 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 05:39:03,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-05-06 05:39:03,812 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:03,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1212037235, now seen corresponding path program 21 times [2021-05-06 05:39:03,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:03,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782823417] [2021-05-06 05:39:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:04,941 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 05:39:04,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:04,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782823417] [2021-05-06 05:39:04,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782823417] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:04,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544926360] [2021-05-06 05:39:04,942 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 05:39:06,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-05-06 05:39:06,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:06,172 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 218 conjunts are in the unsatisfiable core [2021-05-06 05:39:06,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:06,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:06,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:07,523 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 05:39:07,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544926360] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:07,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:07,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 46] total 48 [2021-05-06 05:39:07,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128283792] [2021-05-06 05:39:07,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-06 05:39:07,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:07,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-06 05:39:07,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=2141, Unknown=0, NotChecked=0, Total=2256 [2021-05-06 05:39:07,525 INFO L87 Difference]: Start difference. First operand 78 states and 98 transitions. Second operand has 48 states, 48 states have (on average 1.125) internal successors, (54), 26 states have internal predecessors, (54), 23 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-06 05:39:10,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:10,892 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-05-06 05:39:10,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-06 05:39:10,893 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.125) internal successors, (54), 26 states have internal predecessors, (54), 23 states have call successors, (25), 3 states have call predecessors, (25), 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 05:39:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:10,893 INFO L225 Difference]: With dead ends: 83 [2021-05-06 05:39:10,893 INFO L226 Difference]: Without dead ends: 83 [2021-05-06 05:39:10,894 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 154 SyntacticMatches, 26 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 4106.3ms TimeCoverageRelationStatistics Valid=376, Invalid=7996, Unknown=0, NotChecked=0, Total=8372 [2021-05-06 05:39:10,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-05-06 05:39:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2021-05-06 05:39:10,896 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 05:39:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2021-05-06 05:39:10,896 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 137 [2021-05-06 05:39:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:10,896 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2021-05-06 05:39:10,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.125) internal successors, (54), 26 states have internal predecessors, (54), 23 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-05-06 05:39:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2021-05-06 05:39:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-06 05:39:10,897 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:10,897 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 05:39:11,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-05-06 05:39:11,102 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:11,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:11,102 INFO L82 PathProgramCache]: Analyzing trace with hash 768012658, now seen corresponding path program 22 times [2021-05-06 05:39:11,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:11,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393320233] [2021-05-06 05:39:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:12,293 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 05:39:12,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:12,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393320233] [2021-05-06 05:39:12,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393320233] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:12,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474571558] [2021-05-06 05:39:12,293 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 05:39:12,367 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:39:12,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:12,370 WARN L261 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 223 conjunts are in the unsatisfiable core [2021-05-06 05:39:12,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:12,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:12,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:13,546 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 05:39:13,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474571558] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:13,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:13,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 50 [2021-05-06 05:39:13,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703679274] [2021-05-06 05:39:13,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-06 05:39:13,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:13,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-06 05:39:13,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=2330, Unknown=0, NotChecked=0, Total=2450 [2021-05-06 05:39:13,547 INFO L87 Difference]: Start difference. First operand 81 states and 102 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), 3 states have call predecessors, (26), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-06 05:39:17,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:17,064 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2021-05-06 05:39:17,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-06 05:39:17,064 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), 3 states have call predecessors, (26), 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 05:39:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:17,065 INFO L225 Difference]: With dead ends: 86 [2021-05-06 05:39:17,065 INFO L226 Difference]: Without dead ends: 86 [2021-05-06 05:39:17,065 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 166 SyntacticMatches, 22 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 4094.3ms TimeCoverageRelationStatistics Valid=393, Invalid=8727, Unknown=0, NotChecked=0, Total=9120 [2021-05-06 05:39:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-05-06 05:39:17,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2021-05-06 05:39:17,067 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 05:39:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 106 transitions. [2021-05-06 05:39:17,067 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 106 transitions. Word has length 143 [2021-05-06 05:39:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:17,068 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 106 transitions. [2021-05-06 05:39:17,068 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), 3 states have call predecessors, (26), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-05-06 05:39:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 106 transitions. [2021-05-06 05:39:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-05-06 05:39:17,068 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:17,069 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 05:39:17,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:39:17,285 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:17,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:17,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2105301911, now seen corresponding path program 23 times [2021-05-06 05:39:17,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:17,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195527946] [2021-05-06 05:39:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:18,609 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 05:39:18,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:18,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195527946] [2021-05-06 05:39:18,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195527946] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:18,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37047011] [2021-05-06 05:39:18,609 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 05:39:23,248 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-05-06 05:39:23,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:23,253 WARN L261 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 249 conjunts are in the unsatisfiable core [2021-05-06 05:39:23,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:23,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:23,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:24,640 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 05:39:24,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37047011] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:24,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:24,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50] total 52 [2021-05-06 05:39:24,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616045137] [2021-05-06 05:39:24,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-06 05:39:24,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:24,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-06 05:39:24,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2021-05-06 05:39:24,642 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 05:39:28,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:28,454 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2021-05-06 05:39:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-06 05:39:28,455 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 05:39:28,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:28,456 INFO L225 Difference]: With dead ends: 89 [2021-05-06 05:39:28,456 INFO L226 Difference]: Without dead ends: 89 [2021-05-06 05:39:28,457 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 157 SyntacticMatches, 39 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1163 ImplicationChecksByTransitivity, 4552.4ms TimeCoverageRelationStatistics Valid=410, Invalid=9490, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:39:28,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-06 05:39:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-05-06 05:39:28,459 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 05:39:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2021-05-06 05:39:28,459 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 149 [2021-05-06 05:39:28,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:28,460 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2021-05-06 05:39:28,460 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 05:39:28,460 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2021-05-06 05:39:28,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-05-06 05:39:28,460 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:28,460 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 05:39:28,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-05-06 05:39:28,667 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:28,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1799411196, now seen corresponding path program 24 times [2021-05-06 05:39:28,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:28,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666381504] [2021-05-06 05:39:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:30,161 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 05:39:30,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:30,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666381504] [2021-05-06 05:39:30,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666381504] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:30,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977284236] [2021-05-06 05:39:30,162 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 05:39:31,940 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-05-06 05:39:31,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:31,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 245 conjunts are in the unsatisfiable core [2021-05-06 05:39:31,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:32,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:32,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:33,325 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 05:39:33,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977284236] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:33,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:33,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 52] total 54 [2021-05-06 05:39:33,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641730911] [2021-05-06 05:39:33,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-06 05:39:33,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:33,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-06 05:39:33,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2732, Unknown=0, NotChecked=0, Total=2862 [2021-05-06 05:39:33,327 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand has 54 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 29 states have internal predecessors, (60), 26 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-06 05:39:37,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:37,457 INFO L93 Difference]: Finished difference Result 92 states and 117 transitions. [2021-05-06 05:39:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-06 05:39:37,458 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 29 states have internal predecessors, (60), 26 states have call successors, (28), 3 states have call predecessors, (28), 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 05:39:37,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:37,458 INFO L225 Difference]: With dead ends: 92 [2021-05-06 05:39:37,458 INFO L226 Difference]: Without dead ends: 92 [2021-05-06 05:39:37,459 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 178 SyntacticMatches, 26 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1233 ImplicationChecksByTransitivity, 4890.0ms TimeCoverageRelationStatistics Valid=427, Invalid=10285, Unknown=0, NotChecked=0, Total=10712 [2021-05-06 05:39:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-05-06 05:39:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-05-06 05:39:37,461 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 05:39:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 114 transitions. [2021-05-06 05:39:37,462 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 114 transitions. Word has length 155 [2021-05-06 05:39:37,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:37,462 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 114 transitions. [2021-05-06 05:39:37,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 29 states have internal predecessors, (60), 26 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-05-06 05:39:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 114 transitions. [2021-05-06 05:39:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-05-06 05:39:37,462 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:37,463 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 05:39:37,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:39:37,668 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:37,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:37,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1927860063, now seen corresponding path program 25 times [2021-05-06 05:39:37,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:37,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531367649] [2021-05-06 05:39:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,237 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 05:39:39,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:39,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531367649] [2021-05-06 05:39:39,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531367649] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:39,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284359769] [2021-05-06 05:39:39,238 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 05:39:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:39,353 WARN L261 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 253 conjunts are in the unsatisfiable core [2021-05-06 05:39:39,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:39,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:39,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:40,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:41,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:41,040 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 05:39:41,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284359769] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:41,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:41,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54] total 56 [2021-05-06 05:39:41,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375885759] [2021-05-06 05:39:41,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-06 05:39:41,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:41,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-06 05:39:41,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=2945, Unknown=0, NotChecked=0, Total=3080 [2021-05-06 05:39:41,041 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 05:39:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:45,068 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2021-05-06 05:39:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-06 05:39:45,068 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 05:39:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:45,069 INFO L225 Difference]: With dead ends: 95 [2021-05-06 05:39:45,069 INFO L226 Difference]: Without dead ends: 95 [2021-05-06 05:39:45,070 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 187 SyntacticMatches, 25 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 5058.8ms TimeCoverageRelationStatistics Valid=444, Invalid=11112, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 05:39:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-05-06 05:39:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-05-06 05:39:45,072 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 05:39:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2021-05-06 05:39:45,072 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 161 [2021-05-06 05:39:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:45,072 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2021-05-06 05:39:45,073 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 05:39:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2021-05-06 05:39:45,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-06 05:39:45,073 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:45,073 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 05:39:45,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-06 05:39:45,291 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:45,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2141600646, now seen corresponding path program 26 times [2021-05-06 05:39:45,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:45,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361753510] [2021-05-06 05:39:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:46,905 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 05:39:46,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:46,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361753510] [2021-05-06 05:39:46,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361753510] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:46,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57720887] [2021-05-06 05:39:46,906 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 05:39:46,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:39:46,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:46,997 WARN L261 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 263 conjunts are in the unsatisfiable core [2021-05-06 05:39:47,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:47,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:47,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:48,580 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 05:39:48,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57720887] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:48,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:48,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 56] total 58 [2021-05-06 05:39:48,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171811351] [2021-05-06 05:39:48,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-06 05:39:48,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:48,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-06 05:39:48,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=3166, Unknown=0, NotChecked=0, Total=3306 [2021-05-06 05:39:48,582 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 05:39:53,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:39:53,414 INFO L93 Difference]: Finished difference Result 98 states and 125 transitions. [2021-05-06 05:39:53,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-06 05:39:53,414 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 05:39:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:39:53,415 INFO L225 Difference]: With dead ends: 98 [2021-05-06 05:39:53,415 INFO L226 Difference]: Without dead ends: 98 [2021-05-06 05:39:53,415 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 194 SyntacticMatches, 26 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 5484.4ms TimeCoverageRelationStatistics Valid=461, Invalid=11971, Unknown=0, NotChecked=0, Total=12432 [2021-05-06 05:39:53,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-05-06 05:39:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-05-06 05:39:53,417 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 05:39:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 122 transitions. [2021-05-06 05:39:53,418 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 122 transitions. Word has length 167 [2021-05-06 05:39:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:39:53,418 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 122 transitions. [2021-05-06 05:39:53,418 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 05:39:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 122 transitions. [2021-05-06 05:39:53,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-05-06 05:39:53,419 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:39:53,419 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 05:39:53,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-05-06 05:39:53,637 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:39:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:39:53,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1530447531, now seen corresponding path program 27 times [2021-05-06 05:39:53,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:39:53,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447939069] [2021-05-06 05:39:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:39:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:39:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:39:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:39:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:39:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:39:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:39:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:39:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:39:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:39:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:39:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:39:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:39:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:39:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:39:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:39:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:39:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:39:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:39:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:39:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:39:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:39:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:39:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:39:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:39:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:39:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:39:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:39:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:39:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:39:55,375 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 05:39:55,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:39:55,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447939069] [2021-05-06 05:39:55,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447939069] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:55,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536372684] [2021-05-06 05:39:55,375 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 05:39:56,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-05-06 05:39:56,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:39:56,677 WARN L261 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 274 conjunts are in the unsatisfiable core [2021-05-06 05:39:56,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:39:56,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:56,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:57,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:39:58,468 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 05:39:58,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536372684] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:39:58,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:39:58,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 58] total 60 [2021-05-06 05:39:58,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323789983] [2021-05-06 05:39:58,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-06 05:39:58,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:39:58,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-06 05:39:58,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=3395, Unknown=0, NotChecked=0, Total=3540 [2021-05-06 05:39:58,470 INFO L87 Difference]: Start difference. First operand 96 states and 122 transitions. Second operand has 60 states, 60 states have (on average 1.1) internal successors, (66), 32 states have internal predecessors, (66), 29 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-06 05:40:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:03,674 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2021-05-06 05:40:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-06 05:40:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.1) internal successors, (66), 32 states have internal predecessors, (66), 29 states have call successors, (31), 3 states have call predecessors, (31), 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 05:40:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:03,676 INFO L225 Difference]: With dead ends: 101 [2021-05-06 05:40:03,676 INFO L226 Difference]: Without dead ends: 101 [2021-05-06 05:40:03,677 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 200 SyntacticMatches, 28 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1546 ImplicationChecksByTransitivity, 6026.3ms TimeCoverageRelationStatistics Valid=478, Invalid=12862, Unknown=0, NotChecked=0, Total=13340 [2021-05-06 05:40:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-05-06 05:40:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-05-06 05:40:03,680 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 05:40:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2021-05-06 05:40:03,681 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 173 [2021-05-06 05:40:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:03,681 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2021-05-06 05:40:03,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 1.1) internal successors, (66), 32 states have internal predecessors, (66), 29 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-05-06 05:40:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2021-05-06 05:40:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-05-06 05:40:03,682 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:03,683 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 05:40:03,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-05-06 05:40:03,889 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:03,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:03,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1757258256, now seen corresponding path program 28 times [2021-05-06 05:40:03,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:03,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577369636] [2021-05-06 05:40:03,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:05,857 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 05:40:05,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:05,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577369636] [2021-05-06 05:40:05,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577369636] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:05,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620425235] [2021-05-06 05:40:05,858 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 05:40:05,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:40:05,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:05,957 WARN L261 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 283 conjunts are in the unsatisfiable core [2021-05-06 05:40:05,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:06,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:06,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:07,950 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 05:40:07,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620425235] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:07,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:07,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 60] total 62 [2021-05-06 05:40:07,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608238643] [2021-05-06 05:40:07,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-05-06 05:40:07,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:07,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-05-06 05:40:07,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=3632, Unknown=0, NotChecked=0, Total=3782 [2021-05-06 05:40:07,952 INFO L87 Difference]: Start difference. First operand 99 states and 126 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), 3 states have call predecessors, (32), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-06 05:40:13,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:13,566 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2021-05-06 05:40:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-06 05:40:13,566 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), 3 states have call predecessors, (32), 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 05:40:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:13,567 INFO L225 Difference]: With dead ends: 104 [2021-05-06 05:40:13,567 INFO L226 Difference]: Without dead ends: 104 [2021-05-06 05:40:13,568 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 208 SyntacticMatches, 28 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1657 ImplicationChecksByTransitivity, 6602.0ms TimeCoverageRelationStatistics Valid=495, Invalid=13785, Unknown=0, NotChecked=0, Total=14280 [2021-05-06 05:40:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-05-06 05:40:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2021-05-06 05:40:13,570 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 05:40:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 130 transitions. [2021-05-06 05:40:13,570 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 130 transitions. Word has length 179 [2021-05-06 05:40:13,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:13,571 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 130 transitions. [2021-05-06 05:40:13,571 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), 3 states have call predecessors, (32), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2021-05-06 05:40:13,571 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 130 transitions. [2021-05-06 05:40:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-05-06 05:40:13,571 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:13,572 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 05:40:13,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:40:13,785 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:13,785 INFO L82 PathProgramCache]: Analyzing trace with hash 382180789, now seen corresponding path program 29 times [2021-05-06 05:40:13,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:13,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490078395] [2021-05-06 05:40:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:15,855 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 05:40:15,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:15,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490078395] [2021-05-06 05:40:15,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490078395] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:15,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811827954] [2021-05-06 05:40:15,855 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 05:40:32,606 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-05-06 05:40:32,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:32,615 WARN L261 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 321 conjunts are in the unsatisfiable core [2021-05-06 05:40:32,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:32,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:32,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:33,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:34,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:35,455 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 05:40:35,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811827954] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:35,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:35,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 62] total 64 [2021-05-06 05:40:35,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170455231] [2021-05-06 05:40:35,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-05-06 05:40:35,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:35,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-05-06 05:40:35,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3877, Unknown=0, NotChecked=0, Total=4032 [2021-05-06 05:40:35,457 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 05:40:41,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:41,493 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2021-05-06 05:40:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-05-06 05:40:41,494 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 05:40:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:41,494 INFO L225 Difference]: With dead ends: 107 [2021-05-06 05:40:41,495 INFO L226 Difference]: Without dead ends: 107 [2021-05-06 05:40:41,495 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 187 SyntacticMatches, 57 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1829 ImplicationChecksByTransitivity, 7839.8ms TimeCoverageRelationStatistics Valid=512, Invalid=14740, Unknown=0, NotChecked=0, Total=15252 [2021-05-06 05:40:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-05-06 05:40:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-05-06 05:40:41,497 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 05:40:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2021-05-06 05:40:41,498 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 185 [2021-05-06 05:40:41,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:41,498 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2021-05-06 05:40:41,498 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 05:40:41,498 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2021-05-06 05:40:41,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-06 05:40:41,499 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:41,499 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 05:40:41,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-05-06 05:40:41,705 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:41,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:41,706 INFO L82 PathProgramCache]: Analyzing trace with hash 781027738, now seen corresponding path program 30 times [2021-05-06 05:40:41,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:41,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536312235] [2021-05-06 05:40:41,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:43,809 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 05:40:43,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:43,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536312235] [2021-05-06 05:40:43,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536312235] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:43,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665231712] [2021-05-06 05:40:43,810 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 05:40:48,359 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-05-06 05:40:48,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:40:48,367 WARN L261 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 329 conjunts are in the unsatisfiable core [2021-05-06 05:40:48,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:48,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:48,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:49,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:50,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:51,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:51,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:51,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:51,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:51,198 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 05:40:51,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665231712] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:51,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:40:51,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64] total 66 [2021-05-06 05:40:51,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702039748] [2021-05-06 05:40:51,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-05-06 05:40:51,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:40:51,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-05-06 05:40:51,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=4130, Unknown=0, NotChecked=0, Total=4290 [2021-05-06 05:40:51,200 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 05:40:57,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:40:57,076 INFO L93 Difference]: Finished difference Result 110 states and 141 transitions. [2021-05-06 05:40:57,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-06 05:40:57,076 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 05:40:57,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:40:57,077 INFO L225 Difference]: With dead ends: 110 [2021-05-06 05:40:57,077 INFO L226 Difference]: Without dead ends: 110 [2021-05-06 05:40:57,078 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 201 SyntacticMatches, 51 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 7711.8ms TimeCoverageRelationStatistics Valid=529, Invalid=15727, Unknown=0, NotChecked=0, Total=16256 [2021-05-06 05:40:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-05-06 05:40:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-05-06 05:40:57,080 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 05:40:57,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2021-05-06 05:40:57,080 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 138 transitions. Word has length 191 [2021-05-06 05:40:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:40:57,081 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 138 transitions. [2021-05-06 05:40:57,081 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 05:40:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 138 transitions. [2021-05-06 05:40:57,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-05-06 05:40:57,082 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:40:57,082 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 05:40:57,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:40:57,288 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:40:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:40:57,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1223308735, now seen corresponding path program 31 times [2021-05-06 05:40:57,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:40:57,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782270373] [2021-05-06 05:40:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:40:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:40:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:40:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:40:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:40:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:40:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:40:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:40:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:40:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:40:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:40:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:40:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:40:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:40:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:40:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:40:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:40:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:40:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:40:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:40:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:40:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:40:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:40:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:40:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:40:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:40:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:40:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:40:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:40:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:40:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:40:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:40:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:40:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,701 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 05:40:59,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:40:59,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782270373] [2021-05-06 05:40:59,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782270373] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:40:59,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770075306] [2021-05-06 05:40:59,702 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 05:40:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:40:59,852 WARN L261 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 313 conjunts are in the unsatisfiable core [2021-05-06 05:40:59,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:40:59,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:40:59,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:00,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:01,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:02,012 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 05:41:02,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770075306] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:02,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:02,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 66] total 68 [2021-05-06 05:41:02,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714343841] [2021-05-06 05:41:02,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-05-06 05:41:02,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:02,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-05-06 05:41:02,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=4391, Unknown=0, NotChecked=0, Total=4556 [2021-05-06 05:41:02,013 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 05:41:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:08,312 INFO L93 Difference]: Finished difference Result 113 states and 145 transitions. [2021-05-06 05:41:08,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-06 05:41:08,312 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 05:41:08,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:08,313 INFO L225 Difference]: With dead ends: 113 [2021-05-06 05:41:08,313 INFO L226 Difference]: Without dead ends: 113 [2021-05-06 05:41:08,314 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 229 SyntacticMatches, 31 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2020 ImplicationChecksByTransitivity, 7655.3ms TimeCoverageRelationStatistics Valid=546, Invalid=16746, Unknown=0, NotChecked=0, Total=17292 [2021-05-06 05:41:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-05-06 05:41:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-05-06 05:41:08,316 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 05:41:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2021-05-06 05:41:08,316 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 197 [2021-05-06 05:41:08,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:08,317 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2021-05-06 05:41:08,317 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 05:41:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2021-05-06 05:41:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-05-06 05:41:08,318 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:08,318 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 05:41:08,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-05-06 05:41:08,525 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:08,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:08,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2091093468, now seen corresponding path program 32 times [2021-05-06 05:41:08,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:08,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071164176] [2021-05-06 05:41:08,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:10,686 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 05:41:10,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:10,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071164176] [2021-05-06 05:41:10,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071164176] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:10,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033893683] [2021-05-06 05:41:10,686 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 05:41:10,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:41:10,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:10,775 WARN L261 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 323 conjunts are in the unsatisfiable core [2021-05-06 05:41:10,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:10,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:10,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:11,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:12,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:13,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:13,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:13,077 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 05:41:13,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033893683] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:13,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:13,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 68] total 70 [2021-05-06 05:41:13,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194314581] [2021-05-06 05:41:13,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-05-06 05:41:13,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:13,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-05-06 05:41:13,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=4660, Unknown=0, NotChecked=0, Total=4830 [2021-05-06 05:41:13,078 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 05:41:19,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:19,621 INFO L93 Difference]: Finished difference Result 116 states and 149 transitions. [2021-05-06 05:41:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-06 05:41:19,622 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 05:41:19,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:19,622 INFO L225 Difference]: With dead ends: 116 [2021-05-06 05:41:19,622 INFO L226 Difference]: Without dead ends: 116 [2021-05-06 05:41:19,623 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 236 SyntacticMatches, 32 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2149 ImplicationChecksByTransitivity, 7586.2ms TimeCoverageRelationStatistics Valid=563, Invalid=17797, Unknown=0, NotChecked=0, Total=18360 [2021-05-06 05:41:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-05-06 05:41:19,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-05-06 05:41:19,625 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 05:41:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 146 transitions. [2021-05-06 05:41:19,626 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 146 transitions. Word has length 203 [2021-05-06 05:41:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:19,626 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 146 transitions. [2021-05-06 05:41:19,626 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 05:41:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 146 transitions. [2021-05-06 05:41:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-05-06 05:41:19,627 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:19,627 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 05:41:19,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-05-06 05:41:19,846 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:19,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:19,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1963396809, now seen corresponding path program 33 times [2021-05-06 05:41:19,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:19,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209577827] [2021-05-06 05:41:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:21,911 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 05:41:21,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:21,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209577827] [2021-05-06 05:41:21,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209577827] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:21,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053966971] [2021-05-06 05:41:21,911 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 05:41:23,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-05-06 05:41:23,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:23,347 WARN L261 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 337 conjunts are in the unsatisfiable core [2021-05-06 05:41:23,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:23,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:23,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:24,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:25,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:26,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:26,031 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 05:41:26,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053966971] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:26,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:26,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 70] total 72 [2021-05-06 05:41:26,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515733201] [2021-05-06 05:41:26,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states [2021-05-06 05:41:26,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:26,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-05-06 05:41:26,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=4937, Unknown=0, NotChecked=0, Total=5112 [2021-05-06 05:41:26,033 INFO L87 Difference]: Start difference. First operand 114 states and 146 transitions. Second operand has 72 states, 72 states have (on average 1.0833333333333333) internal successors, (78), 38 states have internal predecessors, (78), 35 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-05-06 05:41:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:32,947 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2021-05-06 05:41:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-06 05:41:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 1.0833333333333333) internal successors, (78), 38 states have internal predecessors, (78), 35 states have call successors, (37), 3 states have call predecessors, (37), 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 05:41:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:32,948 INFO L225 Difference]: With dead ends: 119 [2021-05-06 05:41:32,948 INFO L226 Difference]: Without dead ends: 119 [2021-05-06 05:41:32,949 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 239 SyntacticMatches, 37 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 8045.3ms TimeCoverageRelationStatistics Valid=580, Invalid=18880, Unknown=0, NotChecked=0, Total=19460 [2021-05-06 05:41:32,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-06 05:41:32,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-05-06 05:41:32,951 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 05:41:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2021-05-06 05:41:32,951 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 209 [2021-05-06 05:41:32,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:32,952 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2021-05-06 05:41:32,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 72 states, 72 states have (on average 1.0833333333333333) internal successors, (78), 38 states have internal predecessors, (78), 35 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-05-06 05:41:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2021-05-06 05:41:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-06 05:41:32,953 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:32,953 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 05:41:33,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-06 05:41:33,158 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:33,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1672534958, now seen corresponding path program 34 times [2021-05-06 05:41:33,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:33,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088696615] [2021-05-06 05:41:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:41:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:35,767 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 05:41:35,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:35,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088696615] [2021-05-06 05:41:35,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088696615] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:35,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809511668] [2021-05-06 05:41:35,767 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 05:41:35,899 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:41:35,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:41:35,904 WARN L261 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 343 conjunts are in the unsatisfiable core [2021-05-06 05:41:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:41:36,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:36,942 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 05:41:37,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:37,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:41:38,606 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 05:41:38,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809511668] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:38,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:41:38,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 72] total 74 [2021-05-06 05:41:38,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504146152] [2021-05-06 05:41:38,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-05-06 05:41:38,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:41:38,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-05-06 05:41:38,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=5222, Unknown=0, NotChecked=0, Total=5402 [2021-05-06 05:41:38,608 INFO L87 Difference]: Start difference. First operand 117 states and 150 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), 3 states have call predecessors, (38), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-06 05:41:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:41:46,084 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2021-05-06 05:41:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-06 05:41:46,084 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), 3 states have call predecessors, (38), 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 05:41:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:41:46,085 INFO L225 Difference]: With dead ends: 122 [2021-05-06 05:41:46,085 INFO L226 Difference]: Without dead ends: 122 [2021-05-06 05:41:46,086 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 250 SyntacticMatches, 34 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 8804.7ms TimeCoverageRelationStatistics Valid=597, Invalid=19995, Unknown=0, NotChecked=0, Total=20592 [2021-05-06 05:41:46,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-05-06 05:41:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-05-06 05:41:46,088 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 05:41:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2021-05-06 05:41:46,089 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 215 [2021-05-06 05:41:46,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:41:46,089 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2021-05-06 05:41:46,089 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), 3 states have call predecessors, (38), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-05-06 05:41:46,089 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2021-05-06 05:41:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-05-06 05:41:46,090 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:41:46,090 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 05:41:46,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-05-06 05:41:46,309 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:41:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:41:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1195071277, now seen corresponding path program 35 times [2021-05-06 05:41:46,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:41:46,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812561249] [2021-05-06 05:41:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:41:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:41:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:41:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:41:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:41:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:41:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:41:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:41:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:41:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:41:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:41:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:41:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:41:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:41:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:41:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:41:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:41:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:41:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:41:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:41:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:41:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:41:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:41:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:41:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:41:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:41:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:41:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:41:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:41:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:41:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:41:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:41:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:41:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:41:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:41:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:41:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:41:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:41:49,041 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 05:41:49,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:41:49,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812561249] [2021-05-06 05:41:49,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812561249] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:41:49,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848319131] [2021-05-06 05:41:49,041 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 05:42:19,374 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-05-06 05:42:19,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:42:19,386 WARN L261 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 379 conjunts are in the unsatisfiable core [2021-05-06 05:42:19,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:42:19,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:19,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:20,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:21,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:22,862 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 05:42:22,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848319131] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:22,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:22,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 74] total 76 [2021-05-06 05:42:22,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785652924] [2021-05-06 05:42:22,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2021-05-06 05:42:22,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:22,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-05-06 05:42:22,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=5515, Unknown=0, NotChecked=0, Total=5700 [2021-05-06 05:42:22,864 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 05:42:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:42:29,767 INFO L93 Difference]: Finished difference Result 125 states and 161 transitions. [2021-05-06 05:42:29,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-05-06 05:42:29,768 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 05:42:29,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:42:29,770 INFO L225 Difference]: With dead ends: 125 [2021-05-06 05:42:29,770 INFO L226 Difference]: Without dead ends: 125 [2021-05-06 05:42:29,771 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 231 SyntacticMatches, 61 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 9395.1ms TimeCoverageRelationStatistics Valid=614, Invalid=21142, Unknown=0, NotChecked=0, Total=21756 [2021-05-06 05:42:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-05-06 05:42:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-05-06 05:42:29,790 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 05:42:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2021-05-06 05:42:29,790 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 221 [2021-05-06 05:42:29,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:42:29,790 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2021-05-06 05:42:29,791 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 05:42:29,791 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2021-05-06 05:42:29,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-05-06 05:42:29,791 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:42:29,792 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 05:42:29,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-05-06 05:42:29,992 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:42:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:42:29,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1236187592, now seen corresponding path program 36 times [2021-05-06 05:42:29,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:42:29,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077441650] [2021-05-06 05:42:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:42:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:42:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:42:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:42:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:42:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:42:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:42:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:42:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:42:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:42:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:42:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:42:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:42:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:42:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:42:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:42:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:42:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:42:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:42:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:42:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:42:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:42:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:42:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:42:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:42:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:42:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:42:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:42:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:42:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:42:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:42:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:42:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:42:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:42:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:42:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:42:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:42:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:42:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:32,734 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 05:42:32,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:42:32,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077441650] [2021-05-06 05:42:32,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077441650] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:32,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139090389] [2021-05-06 05:42:32,735 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 05:42:38,348 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-05-06 05:42:38,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:42:38,357 WARN L261 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 363 conjunts are in the unsatisfiable core [2021-05-06 05:42:38,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:42:38,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:38,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:39,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:40,926 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 05:42:40,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139090389] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:40,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:40,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 76] total 78 [2021-05-06 05:42:40,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974673364] [2021-05-06 05:42:40,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-05-06 05:42:40,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:40,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-05-06 05:42:40,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=5816, Unknown=0, NotChecked=0, Total=6006 [2021-05-06 05:42:40,932 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 05:42:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:42:48,901 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2021-05-06 05:42:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-05-06 05:42:48,902 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 05:42:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:42:48,903 INFO L225 Difference]: With dead ends: 128 [2021-05-06 05:42:48,903 INFO L226 Difference]: Without dead ends: 128 [2021-05-06 05:42:48,904 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 264 SyntacticMatches, 36 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2705 ImplicationChecksByTransitivity, 9068.1ms TimeCoverageRelationStatistics Valid=631, Invalid=22321, Unknown=0, NotChecked=0, Total=22952 [2021-05-06 05:42:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-05-06 05:42:48,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-05-06 05:42:48,907 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 05:42:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 162 transitions. [2021-05-06 05:42:48,907 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 162 transitions. Word has length 227 [2021-05-06 05:42:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:42:48,908 INFO L480 AbstractCegarLoop]: Abstraction has 126 states and 162 transitions. [2021-05-06 05:42:48,908 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 05:42:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 162 transitions. [2021-05-06 05:42:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-05-06 05:42:48,909 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:42:48,909 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 05:42:49,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-05-06 05:42:49,116 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:42:49,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:42:49,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1812562909, now seen corresponding path program 37 times [2021-05-06 05:42:49,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:42:49,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327660111] [2021-05-06 05:42:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:42:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:42:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:42:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:42:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:42:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:42:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:42:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:42:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:42:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:42:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:42:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:42:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:42:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:42:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:42:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:42:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:42:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:42:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:42:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:42:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:42:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:42:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:42:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:42:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:42:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:42:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:42:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:42:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:42:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:42:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:42:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:42:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:42:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:42:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:42:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:42:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:42:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:42:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:42:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,153 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 05:42:52,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:42:52,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327660111] [2021-05-06 05:42:52,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327660111] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:52,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051355535] [2021-05-06 05:42:52,153 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 05:42:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:42:52,250 WARN L261 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 373 conjunts are in the unsatisfiable core [2021-05-06 05:42:52,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:42:52,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:52,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:53,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:54,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:42:55,319 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 05:42:55,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051355535] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:42:55,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:42:55,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 78] total 80 [2021-05-06 05:42:55,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57174965] [2021-05-06 05:42:55,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-06 05:42:55,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:42:55,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-06 05:42:55,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=6125, Unknown=0, NotChecked=0, Total=6320 [2021-05-06 05:42:55,321 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 05:43:03,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:43:03,786 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-05-06 05:43:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-06 05:43:03,787 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 05:43:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:43:03,787 INFO L225 Difference]: With dead ends: 131 [2021-05-06 05:43:03,787 INFO L226 Difference]: Without dead ends: 131 [2021-05-06 05:43:03,788 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 271 SyntacticMatches, 37 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 10142.0ms TimeCoverageRelationStatistics Valid=648, Invalid=23532, Unknown=0, NotChecked=0, Total=24180 [2021-05-06 05:43:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-05-06 05:43:03,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-05-06 05:43:03,790 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 05:43:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2021-05-06 05:43:03,791 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 233 [2021-05-06 05:43:03,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:43:03,791 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2021-05-06 05:43:03,791 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 05:43:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2021-05-06 05:43:03,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-05-06 05:43:03,792 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:43:03,792 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 05:43:04,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-05-06 05:43:04,009 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:43:04,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:43:04,009 INFO L82 PathProgramCache]: Analyzing trace with hash -331075134, now seen corresponding path program 38 times [2021-05-06 05:43:04,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:43:04,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816783794] [2021-05-06 05:43:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:43:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:43:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:43:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:43:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:43:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:43:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:43:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:43:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:43:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:43:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:43:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:43:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:43:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:43:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:43:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:43:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:43:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:43:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:43:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:43:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:43:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:43:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:43:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:43:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:43:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:43:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:43:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:43:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:43:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:43:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:43:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:43:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:43:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:43:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:43:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:43:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:43:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:43:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:43:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:43:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:07,161 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 05:43:07,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:43:07,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816783794] [2021-05-06 05:43:07,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816783794] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:07,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363909968] [2021-05-06 05:43:07,162 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 05:43:07,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:43:07,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:43:07,282 WARN L261 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 383 conjunts are in the unsatisfiable core [2021-05-06 05:43:07,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:43:07,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:07,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:08,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:09,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:10,434 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 05:43:10,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363909968] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:10,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:43:10,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 80] total 82 [2021-05-06 05:43:10,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647264291] [2021-05-06 05:43:10,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-05-06 05:43:10,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:43:10,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-05-06 05:43:10,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=6442, Unknown=0, NotChecked=0, Total=6642 [2021-05-06 05:43:10,435 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 05:43:19,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:43:19,164 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2021-05-06 05:43:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-06 05:43:19,165 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 05:43:19,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:43:19,166 INFO L225 Difference]: With dead ends: 134 [2021-05-06 05:43:19,166 INFO L226 Difference]: Without dead ends: 134 [2021-05-06 05:43:19,167 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 278 SyntacticMatches, 38 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3007 ImplicationChecksByTransitivity, 10542.5ms TimeCoverageRelationStatistics Valid=665, Invalid=24775, Unknown=0, NotChecked=0, Total=25440 [2021-05-06 05:43:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-05-06 05:43:19,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-05-06 05:43:19,169 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 05:43:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 170 transitions. [2021-05-06 05:43:19,169 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 170 transitions. Word has length 239 [2021-05-06 05:43:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:43:19,169 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 170 transitions. [2021-05-06 05:43:19,169 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 05:43:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 170 transitions. [2021-05-06 05:43:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-05-06 05:43:19,170 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:43:19,170 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 05:43:19,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-06 05:43:19,371 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:43:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:43:19,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1057218585, now seen corresponding path program 39 times [2021-05-06 05:43:19,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:43:19,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554940968] [2021-05-06 05:43:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:43:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:43:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:43:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:43:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:43:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:43:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:43:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:43:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:43:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:43:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:43:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:43:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:43:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:43:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:43:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:43:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:43:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:43:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:43:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:43:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:43:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:43:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:43:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:43:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:43:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:43:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:43:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:43:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:43:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:43:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:43:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:43:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:43:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:43:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:43:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:43:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:43:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:43:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:43:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:43:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:43:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:22,686 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 05:43:22,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:43:22,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554940968] [2021-05-06 05:43:22,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554940968] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:22,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185621432] [2021-05-06 05:43:22,686 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 05:43:28,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-05-06 05:43:28,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:43:28,472 WARN L261 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 406 conjunts are in the unsatisfiable core [2021-05-06 05:43:28,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:43:28,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:28,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:29,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:30,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:31,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:32,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:32,122 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 05:43:32,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185621432] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:32,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:43:32,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 82] total 84 [2021-05-06 05:43:32,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487788783] [2021-05-06 05:43:32,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-05-06 05:43:32,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:43:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-05-06 05:43:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=6767, Unknown=0, NotChecked=0, Total=6972 [2021-05-06 05:43:32,123 INFO L87 Difference]: Start difference. First operand 132 states and 170 transitions. Second operand has 84 states, 84 states have (on average 1.0714285714285714) internal successors, (90), 44 states have internal predecessors, (90), 41 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-05-06 05:43:41,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:43:41,127 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2021-05-06 05:43:41,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-06 05:43:41,128 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 1.0714285714285714) internal successors, (90), 44 states have internal predecessors, (90), 41 states have call successors, (43), 3 states have call predecessors, (43), 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 05:43:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:43:41,129 INFO L225 Difference]: With dead ends: 137 [2021-05-06 05:43:41,129 INFO L226 Difference]: Without dead ends: 137 [2021-05-06 05:43:41,130 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 277 SyntacticMatches, 47 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3178 ImplicationChecksByTransitivity, 11244.3ms TimeCoverageRelationStatistics Valid=682, Invalid=26050, Unknown=0, NotChecked=0, Total=26732 [2021-05-06 05:43:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-05-06 05:43:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-05-06 05:43:41,133 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 05:43:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2021-05-06 05:43:41,133 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 245 [2021-05-06 05:43:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:43:41,134 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2021-05-06 05:43:41,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 1.0714285714285714) internal successors, (90), 44 states have internal predecessors, (90), 41 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-05-06 05:43:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2021-05-06 05:43:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-05-06 05:43:41,135 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:43:41,135 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 05:43:41,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:43:41,341 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:43:41,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:43:41,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1596973492, now seen corresponding path program 40 times [2021-05-06 05:43:41,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:43:41,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857169764] [2021-05-06 05:43:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:43:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:43:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:43:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:43:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:43:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:43:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:43:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:43:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:43:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:43:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:43:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:43:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:43:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:43:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:43:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:43:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:43:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:43:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:43:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:43:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:43:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:43:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:43:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:43:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:43:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:43:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:43:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:43:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:43:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:43:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:43:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:43:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:43:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:43:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:43:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:43:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:43:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:43:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:43:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:43:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:43:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:43:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:43:44,763 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 05:43:44,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:43:44,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857169764] [2021-05-06 05:43:44,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857169764] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:44,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885017295] [2021-05-06 05:43:44,763 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 05:43:44,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:43:44,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:43:44,871 WARN L261 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 403 conjunts are in the unsatisfiable core [2021-05-06 05:43:44,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:43:44,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:44,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:45,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:46,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:47,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:43:48,328 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 05:43:48,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885017295] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:43:48,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:43:48,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 84] total 86 [2021-05-06 05:43:48,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740814953] [2021-05-06 05:43:48,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-05-06 05:43:48,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:43:48,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-05-06 05:43:48,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=7100, Unknown=0, NotChecked=0, Total=7310 [2021-05-06 05:43:48,329 INFO L87 Difference]: Start difference. First operand 135 states and 174 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), 3 states have call predecessors, (44), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-06 05:43:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:43:57,976 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2021-05-06 05:43:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-06 05:43:57,977 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), 3 states have call predecessors, (44), 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 05:43:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:43:57,993 INFO L225 Difference]: With dead ends: 140 [2021-05-06 05:43:57,993 INFO L226 Difference]: Without dead ends: 140 [2021-05-06 05:43:57,994 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 292 SyntacticMatches, 40 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3325 ImplicationChecksByTransitivity, 11494.2ms TimeCoverageRelationStatistics Valid=699, Invalid=27357, Unknown=0, NotChecked=0, Total=28056 [2021-05-06 05:43:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-05-06 05:43:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-05-06 05:43:58,003 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 05:43:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2021-05-06 05:43:58,003 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 251 [2021-05-06 05:43:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:43:58,003 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2021-05-06 05:43:58,004 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), 3 states have call predecessors, (44), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-05-06 05:43:58,004 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2021-05-06 05:43:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-05-06 05:43:58,005 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:43:58,005 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 05:43:58,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:43:58,205 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:43:58,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:43:58,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1677917425, now seen corresponding path program 41 times [2021-05-06 05:43:58,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:43:58,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237517963] [2021-05-06 05:43:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:43:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:44:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:44:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:44:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:44:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:44:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:44:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:44:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:44:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:44:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:44:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:44:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:44:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:44:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:44:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:44:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:44:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:44:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:44:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:44:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:44:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:44:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:44:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:44:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:44:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:44:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:44:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:44:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:44:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:44:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:44:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:44:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:44:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:44:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:44:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:44:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:44:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:44:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:44:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:44:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:44:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:44:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:44:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:44:01,843 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 05:44:01,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:44:01,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237517963] [2021-05-06 05:44:01,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237517963] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:44:01,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146121092] [2021-05-06 05:44:01,843 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 05:45:41,070 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-05-06 05:45:41,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:45:41,108 WARN L261 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 443 conjunts are in the unsatisfiable core [2021-05-06 05:45:41,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:45:41,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:41,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:42,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:43,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:44,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:45:45,735 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 05:45:45,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146121092] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:45:45,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:45:45,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 86] total 88 [2021-05-06 05:45:45,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504912051] [2021-05-06 05:45:45,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-05-06 05:45:45,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:45:45,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-05-06 05:45:45,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=7441, Unknown=0, NotChecked=0, Total=7656 [2021-05-06 05:45:45,738 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 05:45:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:45:56,732 INFO L93 Difference]: Finished difference Result 143 states and 185 transitions. [2021-05-06 05:45:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-06 05:45:56,732 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 05:45:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:45:56,733 INFO L225 Difference]: With dead ends: 143 [2021-05-06 05:45:56,733 INFO L226 Difference]: Without dead ends: 143 [2021-05-06 05:45:56,734 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 269 SyntacticMatches, 71 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3550 ImplicationChecksByTransitivity, 13508.9ms TimeCoverageRelationStatistics Valid=716, Invalid=28696, Unknown=0, NotChecked=0, Total=29412 [2021-05-06 05:45:56,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-05-06 05:45:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2021-05-06 05:45:56,737 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 05:45:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2021-05-06 05:45:56,737 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 257 [2021-05-06 05:45:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:45:56,737 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2021-05-06 05:45:56,738 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 05:45:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2021-05-06 05:45:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-05-06 05:45:56,738 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:45:56,739 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 05:45:56,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-05-06 05:45:56,950 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:45:56,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:45:56,951 INFO L82 PathProgramCache]: Analyzing trace with hash 964398038, now seen corresponding path program 42 times [2021-05-06 05:45:56,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:45:56,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555380749] [2021-05-06 05:45:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:45:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:46:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:46:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:46:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:46:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:46:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:46:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:46:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:46:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:46:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:46:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:46:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:46:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:46:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:46:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:46:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:46:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:46:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:46:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:46:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:46:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:46:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:46:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:46:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:46:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:46:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:46:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:46:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:46:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:46:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:46:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:46:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:46:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:46:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:46:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:46:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:46:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:46:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:46:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:46:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:46:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:46:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:46:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:46:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:00,324 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 05:46:00,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:46:00,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555380749] [2021-05-06 05:46:00,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555380749] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:00,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328004943] [2021-05-06 05:46:00,325 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 05:46:21,426 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-05-06 05:46:21,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:46:21,441 WARN L261 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 429 conjunts are in the unsatisfiable core [2021-05-06 05:46:21,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:46:21,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:21,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:22,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:23,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:24,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:25,312 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 05:46:25,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328004943] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:25,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:46:25,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 88] total 90 [2021-05-06 05:46:25,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180275872] [2021-05-06 05:46:25,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-05-06 05:46:25,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:46:25,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-05-06 05:46:25,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=7790, Unknown=0, NotChecked=0, Total=8010 [2021-05-06 05:46:25,313 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 05:46:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:46:35,125 INFO L93 Difference]: Finished difference Result 146 states and 189 transitions. [2021-05-06 05:46:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-06 05:46:35,126 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 05:46:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:46:35,127 INFO L225 Difference]: With dead ends: 146 [2021-05-06 05:46:35,127 INFO L226 Difference]: Without dead ends: 146 [2021-05-06 05:46:35,128 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 300 SyntacticMatches, 48 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3671 ImplicationChecksByTransitivity, 11774.9ms TimeCoverageRelationStatistics Valid=733, Invalid=30067, Unknown=0, NotChecked=0, Total=30800 [2021-05-06 05:46:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-05-06 05:46:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-05-06 05:46:35,133 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 05:46:35,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2021-05-06 05:46:35,134 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 263 [2021-05-06 05:46:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:46:35,134 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2021-05-06 05:46:35,134 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 05:46:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2021-05-06 05:46:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-05-06 05:46:35,135 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:46:35,135 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 05:46:35,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:46:35,342 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:46:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:46:35,343 INFO L82 PathProgramCache]: Analyzing trace with hash 465869563, now seen corresponding path program 43 times [2021-05-06 05:46:35,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:46:35,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860602300] [2021-05-06 05:46:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:46:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:46:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:46:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:46:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:46:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:46:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:46:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:46:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:46:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:46:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:46:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:46:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:46:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:46:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:46:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:46:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:46:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:46:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:46:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:46:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:46:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:46:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:46:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:46:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:46:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:46:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:46:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:46:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:46:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:46:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:46:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:46:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:46:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:46:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:46:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:46:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:46:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:46:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:46:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:46:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:46:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:46:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:46:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:46:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:46:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,293 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 05:46:39,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:46:39,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860602300] [2021-05-06 05:46:39,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860602300] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:39,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151712514] [2021-05-06 05:46:39,294 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 05:46:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:39,407 WARN L261 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 433 conjunts are in the unsatisfiable core [2021-05-06 05:46:39,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:46:39,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:39,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:40,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:41,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:42,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:43,269 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 05:46:43,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151712514] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:43,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:46:43,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 90] total 92 [2021-05-06 05:46:43,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090111432] [2021-05-06 05:46:43,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states [2021-05-06 05:46:43,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:46:43,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-05-06 05:46:43,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=8147, Unknown=0, NotChecked=0, Total=8372 [2021-05-06 05:46:43,270 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 05:46:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:46:53,043 INFO L93 Difference]: Finished difference Result 149 states and 193 transitions. [2021-05-06 05:46:53,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-06 05:46:53,044 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 05:46:53,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:46:53,044 INFO L225 Difference]: With dead ends: 149 [2021-05-06 05:46:53,045 INFO L226 Difference]: Without dead ends: 149 [2021-05-06 05:46:53,046 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 313 SyntacticMatches, 43 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3832 ImplicationChecksByTransitivity, 12399.4ms TimeCoverageRelationStatistics Valid=750, Invalid=31470, Unknown=0, NotChecked=0, Total=32220 [2021-05-06 05:46:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-05-06 05:46:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2021-05-06 05:46:53,067 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 05:46:53,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2021-05-06 05:46:53,068 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 190 transitions. Word has length 269 [2021-05-06 05:46:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:46:53,068 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 190 transitions. [2021-05-06 05:46:53,068 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 05:46:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2021-05-06 05:46:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-05-06 05:46:53,069 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:46:53,069 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 05:46:53,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:46:53,270 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:46:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:46:53,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2045969824, now seen corresponding path program 44 times [2021-05-06 05:46:53,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:46:53,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256676593] [2021-05-06 05:46:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:46:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:46:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:46:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:46:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:46:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:46:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:46:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:46:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:46:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:46:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:46:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:46:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:46:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:46:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:46:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:46:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:46:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:46:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:46:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:46:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:46:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:46:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:46:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:46:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:46:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:46:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:46:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:46:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:46:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:46:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:46:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:46:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:46:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:46:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:46:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:46:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:46:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:46:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:46:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:46:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:46:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:46:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:46:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:46:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:46:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:46:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:46:56,855 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 05:46:56,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:46:56,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256676593] [2021-05-06 05:46:56,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256676593] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:46:56,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717450821] [2021-05-06 05:46:56,855 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 05:46:56,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:46:56,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:46:56,975 WARN L261 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 443 conjunts are in the unsatisfiable core [2021-05-06 05:46:56,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:46:57,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:57,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:58,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:46:59,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:00,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:01,188 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 05:47:01,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717450821] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:01,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:47:01,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 92] total 94 [2021-05-06 05:47:01,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841557859] [2021-05-06 05:47:01,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states [2021-05-06 05:47:01,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:47:01,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-05-06 05:47:01,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=8512, Unknown=0, NotChecked=0, Total=8742 [2021-05-06 05:47:01,190 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 05:47:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:47:11,617 INFO L93 Difference]: Finished difference Result 152 states and 197 transitions. [2021-05-06 05:47:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-05-06 05:47:11,617 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 05:47:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:47:11,618 INFO L225 Difference]: With dead ends: 152 [2021-05-06 05:47:11,618 INFO L226 Difference]: Without dead ends: 152 [2021-05-06 05:47:11,620 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 320 SyntacticMatches, 44 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4009 ImplicationChecksByTransitivity, 12593.9ms TimeCoverageRelationStatistics Valid=767, Invalid=32905, Unknown=0, NotChecked=0, Total=33672 [2021-05-06 05:47:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-05-06 05:47:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2021-05-06 05:47:11,642 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 05:47:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2021-05-06 05:47:11,644 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 275 [2021-05-06 05:47:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:47:11,644 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2021-05-06 05:47:11,644 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 05:47:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2021-05-06 05:47:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-05-06 05:47:11,645 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:47:11,646 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 05:47:11,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-05-06 05:47:11,846 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:47:11,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:47:11,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1764194821, now seen corresponding path program 45 times [2021-05-06 05:47:11,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:47:11,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248525953] [2021-05-06 05:47:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:47:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:47:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:47:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:47:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:47:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:47:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:47:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:47:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:47:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:47:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:47:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:47:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:47:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:47:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:47:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:47:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:47:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:47:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:47:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:47:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:47:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:47:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:47:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:47:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:47:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:47:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:47:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:47:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:47:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:47:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:47:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:47:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:47:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:47:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:47:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:47:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:47:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:47:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:47:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:47:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:47:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:47:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:47:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:47:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:47:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:47:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:47:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:16,241 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 05:47:16,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:47:16,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248525953] [2021-05-06 05:47:16,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248525953] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:16,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654488050] [2021-05-06 05:47:16,242 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 05:47:26,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-05-06 05:47:26,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:47:26,571 WARN L261 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 459 conjunts are in the unsatisfiable core [2021-05-06 05:47:26,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:47:26,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:26,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:27,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:28,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:29,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:30,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:31,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:31,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:31,117 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 05:47:31,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654488050] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:31,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:47:31,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 94] total 96 [2021-05-06 05:47:31,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447770533] [2021-05-06 05:47:31,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2021-05-06 05:47:31,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:47:31,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-05-06 05:47:31,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=8885, Unknown=0, NotChecked=0, Total=9120 [2021-05-06 05:47:31,119 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 96 states, 96 states have (on average 1.0625) internal successors, (102), 50 states have internal predecessors, (102), 47 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-05-06 05:47:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:47:43,054 INFO L93 Difference]: Finished difference Result 155 states and 201 transitions. [2021-05-06 05:47:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-05-06 05:47:43,055 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.0625) internal successors, (102), 50 states have internal predecessors, (102), 47 states have call successors, (49), 3 states have call predecessors, (49), 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 05:47:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:47:43,056 INFO L225 Difference]: With dead ends: 155 [2021-05-06 05:47:43,056 INFO L226 Difference]: Without dead ends: 155 [2021-05-06 05:47:43,057 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 321 SyntacticMatches, 51 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4202 ImplicationChecksByTransitivity, 14483.4ms TimeCoverageRelationStatistics Valid=784, Invalid=34372, Unknown=0, NotChecked=0, Total=35156 [2021-05-06 05:47:43,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-05-06 05:47:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2021-05-06 05:47:43,071 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 05:47:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2021-05-06 05:47:43,073 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 281 [2021-05-06 05:47:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:47:43,074 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2021-05-06 05:47:43,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 96 states, 96 states have (on average 1.0625) internal successors, (102), 50 states have internal predecessors, (102), 47 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-05-06 05:47:43,074 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2021-05-06 05:47:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-05-06 05:47:43,075 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:47:43,075 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 05:47:43,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-05-06 05:47:43,281 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:47:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:47:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1619716586, now seen corresponding path program 46 times [2021-05-06 05:47:43,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:47:43,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983038207] [2021-05-06 05:47:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:47:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:47:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:47:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:47:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:47:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:47:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:47:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:47:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:47:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:47:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:47:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:47:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:47:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:47:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:47:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:47:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:47:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:47:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:47:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:47:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:47:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:47:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:47:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:47:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:47:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:47:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:47:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:47:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:47:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:47:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:47:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:47:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:47:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:47:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:47,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:47:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:47:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:47:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:47:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:47:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:47:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:47:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:47:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:47:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:47:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:47:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:47:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:47:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:47:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:47:48,038 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 05:47:48,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:47:48,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983038207] [2021-05-06 05:47:48,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983038207] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:48,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831938250] [2021-05-06 05:47:48,038 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 05:47:48,166 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-06 05:47:48,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:47:48,173 WARN L261 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 463 conjunts are in the unsatisfiable core [2021-05-06 05:47:48,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:47:48,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:48,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:49,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:50,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:51,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:47:52,806 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 05:47:52,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831938250] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:47:52,806 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:47:52,806 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 96] total 98 [2021-05-06 05:47:52,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888290090] [2021-05-06 05:47:52,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2021-05-06 05:47:52,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:47:52,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-05-06 05:47:52,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=9266, Unknown=0, NotChecked=0, Total=9506 [2021-05-06 05:47:52,807 INFO L87 Difference]: Start difference. First operand 153 states and 198 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), 3 states have call predecessors, (50), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-06 05:48:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:48:04,102 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2021-05-06 05:48:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-05-06 05:48:04,103 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), 3 states have call predecessors, (50), 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 05:48:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:48:04,104 INFO L225 Difference]: With dead ends: 158 [2021-05-06 05:48:04,104 INFO L226 Difference]: Without dead ends: 158 [2021-05-06 05:48:04,106 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 334 SyntacticMatches, 46 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4375 ImplicationChecksByTransitivity, 14549.6ms TimeCoverageRelationStatistics Valid=801, Invalid=35871, Unknown=0, NotChecked=0, Total=36672 [2021-05-06 05:48:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-05-06 05:48:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2021-05-06 05:48:04,108 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 05:48:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2021-05-06 05:48:04,109 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 287 [2021-05-06 05:48:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:48:04,109 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2021-05-06 05:48:04,109 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), 3 states have call predecessors, (50), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-05-06 05:48:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2021-05-06 05:48:04,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-05-06 05:48:04,110 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:48:04,110 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 05:48:04,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-05-06 05:48:04,326 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:48:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:48:04,326 INFO L82 PathProgramCache]: Analyzing trace with hash 659692047, now seen corresponding path program 47 times [2021-05-06 05:48:04,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:48:04,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985515026] [2021-05-06 05:48:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:48:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:08,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:48:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:08,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:48:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:48:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:48:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:48:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:48:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:48:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:48:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:48:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:48:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:48:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:48:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:48:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:48:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:48:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:48:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:48:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:48:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:48:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:48:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:48:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:48:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:48:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:48:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:48:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:48:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:48:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:48:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:48:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:48:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:48:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:48:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:48:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:48:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:48:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:48:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:48:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:48:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:48:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:48:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:48:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:48:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:48:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:48:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:48:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:48:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:48:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:48:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:48:09,154 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 05:48:09,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:48:09,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985515026] [2021-05-06 05:48:09,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985515026] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:48:09,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400657217] [2021-05-06 05:48:09,154 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 05:50:08,455 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-05-06 05:50:08,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:50:08,496 WARN L261 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 473 conjunts are in the unsatisfiable core [2021-05-06 05:50:08,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:50:08,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:08,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:09,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:10,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:11,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:12,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:13,455 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 05:50:13,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400657217] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:50:13,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:50:13,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 98] total 100 [2021-05-06 05:50:13,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316997006] [2021-05-06 05:50:13,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states [2021-05-06 05:50:13,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:50:13,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-05-06 05:50:13,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=9655, Unknown=0, NotChecked=0, Total=9900 [2021-05-06 05:50:13,457 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 05:50:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:50:27,280 INFO L93 Difference]: Finished difference Result 161 states and 209 transitions. [2021-05-06 05:50:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-05-06 05:50:27,281 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 05:50:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:50:27,282 INFO L225 Difference]: With dead ends: 161 [2021-05-06 05:50:27,282 INFO L226 Difference]: Without dead ends: 161 [2021-05-06 05:50:27,285 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 341 SyntacticMatches, 47 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4564 ImplicationChecksByTransitivity, 16429.5ms TimeCoverageRelationStatistics Valid=818, Invalid=37402, Unknown=0, NotChecked=0, Total=38220 [2021-05-06 05:50:27,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-05-06 05:50:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2021-05-06 05:50:27,288 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 05:50:27,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2021-05-06 05:50:27,289 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 293 [2021-05-06 05:50:27,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:50:27,289 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2021-05-06 05:50:27,290 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 05:50:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2021-05-06 05:50:27,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-05-06 05:50:27,291 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:50:27,291 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 05:50:27,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:50:27,504 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:50:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:50:27,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1295768180, now seen corresponding path program 48 times [2021-05-06 05:50:27,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:50:27,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089320424] [2021-05-06 05:50:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:50:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:50:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:50:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:50:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:50:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:50:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:50:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:50:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:50:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:50:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:50:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:50:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:50:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:50:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:50:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:50:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:50:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:50:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:50:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:50:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:50:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:50:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:50:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:50:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:50:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:50:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:50:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:50:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:50:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:50:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:50:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:50:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:50:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:50:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:50:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:50:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:50:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:50:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:50:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:50:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:50:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:50:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:50:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:50:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:50:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:50:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:50:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:50:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:50:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:50:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:50:32,725 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 05:50:32,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:50:32,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089320424] [2021-05-06 05:50:32,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089320424] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:50:32,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666182504] [2021-05-06 05:50:32,725 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 05:50:59,602 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-05-06 05:50:59,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:50:59,619 WARN L261 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 509 conjunts are in the unsatisfiable core [2021-05-06 05:50:59,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:50:59,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:50:59,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:00,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:01,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:02,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:03,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:04,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:05,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:05,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:05,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:05,213 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 05:51:05,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666182504] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:51:05,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:51:05,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 100] total 102 [2021-05-06 05:51:05,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707327128] [2021-05-06 05:51:05,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-05-06 05:51:05,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:51:05,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-05-06 05:51:05,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=10052, Unknown=0, NotChecked=0, Total=10302 [2021-05-06 05:51:05,215 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 05:51:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:51:17,620 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2021-05-06 05:51:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-06 05:51:17,620 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 05:51:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:51:17,621 INFO L225 Difference]: With dead ends: 164 [2021-05-06 05:51:17,621 INFO L226 Difference]: Without dead ends: 164 [2021-05-06 05:51:17,623 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 322 SyntacticMatches, 74 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4809 ImplicationChecksByTransitivity, 16564.4ms TimeCoverageRelationStatistics Valid=835, Invalid=38965, Unknown=0, NotChecked=0, Total=39800 [2021-05-06 05:51:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-05-06 05:51:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2021-05-06 05:51:17,625 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 05:51:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 210 transitions. [2021-05-06 05:51:17,626 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 210 transitions. Word has length 299 [2021-05-06 05:51:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:51:17,626 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 210 transitions. [2021-05-06 05:51:17,626 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 05:51:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 210 transitions. [2021-05-06 05:51:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-05-06 05:51:17,628 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:51:17,628 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 05:51:17,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-05-06 05:51:17,836 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:51:17,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:51:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash 732625689, now seen corresponding path program 49 times [2021-05-06 05:51:17,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:51:17,836 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122748657] [2021-05-06 05:51:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:51:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:51:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:51:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:51:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:51:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:51:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:51:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:51:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:51:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:51:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:51:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:51:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:51:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:51:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:51:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:51:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:51:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:51:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:51:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:51:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:51:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:51:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:51:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:51:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:51:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:51:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:51:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:51:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:51:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:51:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:51:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:51:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:51:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:51:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:51:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:51:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:51:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:51:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:51:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:51:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:51:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:51:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:51:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:51:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:51:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:51:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:51:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:51:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:51:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:51:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:51:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,819 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 05:51:22,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:51:22,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122748657] [2021-05-06 05:51:22,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122748657] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:51:22,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807273223] [2021-05-06 05:51:22,820 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 05:51:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:22,939 WARN L261 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 493 conjunts are in the unsatisfiable core [2021-05-06 05:51:22,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:51:23,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:23,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:24,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:25,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:26,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:27,959 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 05:51:27,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807273223] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:51:27,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:51:27,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 102] total 104 [2021-05-06 05:51:27,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272666857] [2021-05-06 05:51:27,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 104 states [2021-05-06 05:51:27,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:51:27,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-05-06 05:51:27,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=10457, Unknown=0, NotChecked=0, Total=10712 [2021-05-06 05:51:27,960 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 05:51:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:51:40,771 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2021-05-06 05:51:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-06 05:51:40,772 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 05:51:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:51:40,773 INFO L225 Difference]: With dead ends: 167 [2021-05-06 05:51:40,773 INFO L226 Difference]: Without dead ends: 167 [2021-05-06 05:51:40,774 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 355 SyntacticMatches, 49 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4954 ImplicationChecksByTransitivity, 16100.9ms TimeCoverageRelationStatistics Valid=852, Invalid=40560, Unknown=0, NotChecked=0, Total=41412 [2021-05-06 05:51:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-05-06 05:51:40,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2021-05-06 05:51:40,777 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 05:51:40,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2021-05-06 05:51:40,777 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 305 [2021-05-06 05:51:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:51:40,777 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2021-05-06 05:51:40,777 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 05:51:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2021-05-06 05:51:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-05-06 05:51:40,778 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:51:40,779 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 05:51:40,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:51:40,995 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:51:40,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:51:40,995 INFO L82 PathProgramCache]: Analyzing trace with hash 447106046, now seen corresponding path program 50 times [2021-05-06 05:51:40,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:51:40,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358017173] [2021-05-06 05:51:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:51:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:51:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:51:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:51:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:51:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:51:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:51:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:51:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:51:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:51:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:51:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:51:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:51:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:51:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:51:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:51:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:51:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:51:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:51:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:51:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:51:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:51:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:51:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:51:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:51:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:51:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:51:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:51:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:51:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:51:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:51:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:51:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:51:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:51:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:51:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:51:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:51:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:51:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:51:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:51:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:51:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:51:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:51:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:51:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:51:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:51:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:51:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:51:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:51:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:51:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:51:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:51:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:51:46,145 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 05:51:46,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:51:46,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358017173] [2021-05-06 05:51:46,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358017173] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:51:46,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571852089] [2021-05-06 05:51:46,146 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 05:51:46,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 05:51:46,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:51:46,325 WARN L261 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 503 conjunts are in the unsatisfiable core [2021-05-06 05:51:46,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:51:46,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:46,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:47,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:48,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:49,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:50,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:51:51,792 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 05:51:51,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571852089] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:51:51,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:51:51,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104] total 106 [2021-05-06 05:51:51,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441695773] [2021-05-06 05:51:51,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states [2021-05-06 05:51:51,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:51:51,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2021-05-06 05:51:51,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=10870, Unknown=0, NotChecked=0, Total=11130 [2021-05-06 05:51:51,794 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 05:52:05,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 05:52:05,197 INFO L93 Difference]: Finished difference Result 170 states and 221 transitions. [2021-05-06 05:52:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-05-06 05:52:05,198 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 05:52:05,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 05:52:05,199 INFO L225 Difference]: With dead ends: 170 [2021-05-06 05:52:05,199 INFO L226 Difference]: Without dead ends: 170 [2021-05-06 05:52:05,201 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 362 SyntacticMatches, 50 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5155 ImplicationChecksByTransitivity, 16931.0ms TimeCoverageRelationStatistics Valid=869, Invalid=42187, Unknown=0, NotChecked=0, Total=43056 [2021-05-06 05:52:05,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-05-06 05:52:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2021-05-06 05:52:05,203 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 05:52:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2021-05-06 05:52:05,203 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 311 [2021-05-06 05:52:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 05:52:05,204 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2021-05-06 05:52:05,204 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 05:52:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2021-05-06 05:52:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-05-06 05:52:05,205 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 05:52:05,205 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 05:52:05,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 05:52:05,417 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 05:52:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 05:52:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash -438788829, now seen corresponding path program 51 times [2021-05-06 05:52:05,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 05:52:05,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851772076] [2021-05-06 05:52:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 05:52:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 05:52:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-05-06 05:52:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-05-06 05:52:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-05-06 05:52:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 05:52:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 05:52:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-05-06 05:52:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-05-06 05:52:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-05-06 05:52:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-05-06 05:52:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-05-06 05:52:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-05-06 05:52:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-05-06 05:52:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-05-06 05:52:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-05-06 05:52:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-05-06 05:52:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-05-06 05:52:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-05-06 05:52:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-05-06 05:52:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-05-06 05:52:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-05-06 05:52:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-05-06 05:52:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-05-06 05:52:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-05-06 05:52:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-05-06 05:52:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-05-06 05:52:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-05-06 05:52:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-05-06 05:52:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-05-06 05:52:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-05-06 05:52:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-05-06 05:52:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-05-06 05:52:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-05-06 05:52:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-05-06 05:52:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-05-06 05:52:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-05-06 05:52:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-05-06 05:52:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-05-06 05:52:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-05-06 05:52:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-05-06 05:52:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-05-06 05:52:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-05-06 05:52:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-05-06 05:52:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-05-06 05:52:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-05-06 05:52:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-05-06 05:52:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-05-06 05:52:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-05-06 05:52:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-05-06 05:52:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-05-06 05:52:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-05-06 05:52:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-05-06 05:52:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 05:52:10,867 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 05:52:10,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 05:52:10,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851772076] [2021-05-06 05:52:10,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851772076] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:52:10,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830905489] [2021-05-06 05:52:10,868 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 05:52:21,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-05-06 05:52:21,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 05:52:21,038 WARN L261 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 536 conjunts are in the unsatisfiable core [2021-05-06 05:52:21,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 05:52:21,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:21,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:22,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:23,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:24,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:25,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:26,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 05:52:27,782 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 05:52:27,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830905489] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 05:52:27,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-06 05:52:27,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 106] total 108 [2021-05-06 05:52:27,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611161733] [2021-05-06 05:52:27,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-05-06 05:52:27,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 05:52:27,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-05-06 05:52:27,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=11291, Unknown=0, NotChecked=0, Total=11556 [2021-05-06 05:52:27,784 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)