/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:56:14,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:56:14,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:56:14,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:56:14,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:56:14,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:56:14,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:56:14,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:56:14,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:56:14,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:56:14,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:56:14,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:56:14,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:56:14,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:56:14,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:56:14,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:56:14,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:56:14,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:56:14,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:56:14,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:56:14,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:56:14,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:56:14,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:56:14,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:56:14,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:56:14,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:56:14,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:56:14,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:56:14,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:56:14,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:56:14,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:56:14,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:56:14,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:56:14,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:56:14,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:56:14,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:56:14,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:56:14,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:56:14,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:56:14,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:56:14,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:56:14,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:56:14,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:56:14,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:56:14,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:56:14,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:56:14,804 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:56:14,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:56:14,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:56:14,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:56:14,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:56:14,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:56:14,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:56:14,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:56:14,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:56:14,806 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:56:14,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:56:14,806 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:56:14,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:56:14,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:56:14,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:56:14,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:56:14,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:56:14,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:56:14,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:56:14,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:56:14,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:56:14,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:56:14,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:56:14,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:56:14,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:56:14,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:56:15,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:56:15,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:56:15,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:56:15,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:56:15,391 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:56:15,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 22:56:15,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/503ede4cd/15a25147905648b1bcbda1640162ac90/FLAGd5249dd96 [2020-09-24 22:56:16,072 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:56:16,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 22:56:16,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/503ede4cd/15a25147905648b1bcbda1640162ac90/FLAGd5249dd96 [2020-09-24 22:56:16,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/503ede4cd/15a25147905648b1bcbda1640162ac90 [2020-09-24 22:56:16,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:56:16,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:56:16,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:56:16,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:56:16,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:56:16,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb58955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16, skipping insertion in model container [2020-09-24 22:56:16,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:56:16,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:56:16,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:56:16,758 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:56:16,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:56:16,827 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:56:16,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16 WrapperNode [2020-09-24 22:56:16,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:56:16,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:56:16,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:56:16,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:56:16,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... [2020-09-24 22:56:16,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:56:16,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:56:16,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:56:16,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:56:16,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 22:56:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:56:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:56:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:56:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:56:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:56:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:56:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:56:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 22:56:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:56:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:56:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:56:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:56:17,685 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:56:17,686 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:56:17,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:56:17 BoogieIcfgContainer [2020-09-24 22:56:17,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:56:17,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:56:17,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:56:17,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:56:17,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:56:16" (1/3) ... [2020-09-24 22:56:17,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b43d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:56:17, skipping insertion in model container [2020-09-24 22:56:17,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:56:16" (2/3) ... [2020-09-24 22:56:17,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b43d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:56:17, skipping insertion in model container [2020-09-24 22:56:17,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:56:17" (3/3) ... [2020-09-24 22:56:17,706 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 22:56:17,719 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:56:17,731 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-24 22:56:17,757 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-24 22:56:17,792 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:56:17,792 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:56:17,792 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:56:17,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:56:17,792 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:56:17,793 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:56:17,793 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:56:17,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:56:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-24 22:56:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 22:56:17,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:17,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:17,838 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:17,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:17,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-24 22:56:17,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:17,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522424048] [2020-09-24 22:56:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:18,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:18,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:18,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 22:56:18,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-24 22:56:18,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:56:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 22:56:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:56:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:56:18,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:18,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:18,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:18,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:18,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:56:18,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:56:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:18,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522424048] [2020-09-24 22:56:18,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:18,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:56:18,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413130771] [2020-09-24 22:56:18,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:56:18,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:18,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:56:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:56:18,543 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-24 22:56:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:19,410 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-24 22:56:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:56:19,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 22:56:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:19,432 INFO L225 Difference]: With dead ends: 290 [2020-09-24 22:56:19,432 INFO L226 Difference]: Without dead ends: 239 [2020-09-24 22:56:19,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:56:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-24 22:56:19,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-24 22:56:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 22:56:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-24 22:56:19,536 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-24 22:56:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:19,537 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-24 22:56:19,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:56:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-24 22:56:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 22:56:19,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:19,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:19,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:56:19,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:19,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-24 22:56:19,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:19,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811491788] [2020-09-24 22:56:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 22:56:19,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 22:56:19,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:19,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 22:56:19,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:56:19,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:19,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:19,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:19,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:19,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:19,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:56:19,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:19,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:19,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:19,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811491788] [2020-09-24 22:56:19,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:19,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:19,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141186366] [2020-09-24 22:56:19,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:19,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:19,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:19,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:19,878 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-24 22:56:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:20,163 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-24 22:56:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:20,164 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 22:56:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:20,167 INFO L225 Difference]: With dead ends: 187 [2020-09-24 22:56:20,167 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 22:56:20,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 22:56:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-24 22:56:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 22:56:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-24 22:56:20,205 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-24 22:56:20,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:20,207 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-24 22:56:20,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-24 22:56:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 22:56:20,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:20,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:20,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:56:20,212 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:20,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:20,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-24 22:56:20,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:20,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794926722] [2020-09-24 22:56:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:20,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:20,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:20,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 22:56:20,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 22:56:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:56:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 22:56:20,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:56:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:20,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:20,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:20,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:20,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:20,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794926722] [2020-09-24 22:56:20,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:20,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:56:20,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806424996] [2020-09-24 22:56:20,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:56:20,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:20,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:56:20,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:56:20,438 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-24 22:56:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:20,975 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-24 22:56:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:56:20,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 22:56:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:20,978 INFO L225 Difference]: With dead ends: 237 [2020-09-24 22:56:20,979 INFO L226 Difference]: Without dead ends: 235 [2020-09-24 22:56:20,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:20,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-24 22:56:20,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-24 22:56:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 22:56:20,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-24 22:56:20,993 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-24 22:56:20,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:20,994 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-24 22:56:20,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:56:20,994 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-24 22:56:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 22:56:20,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:20,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:20,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:56:21,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:21,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:21,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-24 22:56:21,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:21,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317897175] [2020-09-24 22:56:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:21,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:56:21,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-09-24 22:56:21,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:21,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 22:56:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:56:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:21,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:21,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:21,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:21,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:21,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317897175] [2020-09-24 22:56:21,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:21,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:21,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013023807] [2020-09-24 22:56:21,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:21,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:21,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:21,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:21,645 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 8 states. [2020-09-24 22:56:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:21,968 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-24 22:56:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:21,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-09-24 22:56:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:21,970 INFO L225 Difference]: With dead ends: 183 [2020-09-24 22:56:21,970 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 22:56:21,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 22:56:21,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-24 22:56:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 22:56:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-24 22:56:21,982 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-24 22:56:21,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:21,982 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-24 22:56:21,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-24 22:56:21,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 22:56:21,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:21,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:21,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:56:21,985 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:21,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-24 22:56:21,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:21,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632537010] [2020-09-24 22:56:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:22,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:22,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 22:56:22,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:22,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-09-24 22:56:22,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:22,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:56:22,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 22:56:22,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:56:22,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:22,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:22,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:22,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:22,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:22,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:22,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:22,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:22,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:22,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:22,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:22,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:22,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632537010] [2020-09-24 22:56:22,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:22,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:56:22,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802025501] [2020-09-24 22:56:22,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:56:22,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:22,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:56:22,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:56:22,499 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 6 states. [2020-09-24 22:56:23,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:23,079 INFO L93 Difference]: Finished difference Result 284 states and 288 transitions. [2020-09-24 22:56:23,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:56:23,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-24 22:56:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:23,084 INFO L225 Difference]: With dead ends: 284 [2020-09-24 22:56:23,085 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 22:56:23,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 22:56:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 186. [2020-09-24 22:56:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-24 22:56:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 189 transitions. [2020-09-24 22:56:23,108 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 189 transitions. Word has length 64 [2020-09-24 22:56:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:23,109 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 189 transitions. [2020-09-24 22:56:23,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:56:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 189 transitions. [2020-09-24 22:56:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 22:56:23,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:23,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:23,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:56:23,113 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:23,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-24 22:56:23,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:23,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182886617] [2020-09-24 22:56:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:23,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:23,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 22:56:23,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-24 22:56:23,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 22:56:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 22:56:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:23,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:23,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:23,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:23,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:23,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:23,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:23,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:56:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:23,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182886617] [2020-09-24 22:56:23,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:23,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:23,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906518449] [2020-09-24 22:56:23,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:23,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:23,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:23,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:23,717 INFO L87 Difference]: Start difference. First operand 186 states and 189 transitions. Second operand 8 states. [2020-09-24 22:56:25,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:25,276 INFO L93 Difference]: Finished difference Result 478 states and 487 transitions. [2020-09-24 22:56:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:56:25,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 22:56:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:25,281 INFO L225 Difference]: With dead ends: 478 [2020-09-24 22:56:25,281 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 22:56:25,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:56:25,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 22:56:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 197. [2020-09-24 22:56:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 22:56:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 22:56:25,293 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 22:56:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:25,293 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 22:56:25,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 22:56:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 22:56:25,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:25,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:25,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:56:25,297 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:25,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:25,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1904710263, now seen corresponding path program 1 times [2020-09-24 22:56:25,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:25,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525528412] [2020-09-24 22:56:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:25,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 22:56:25,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:56:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-24 22:56:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 22:56:25,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 22:56:25,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:25,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:25,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:25,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:25,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:25,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:25,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:25,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525528412] [2020-09-24 22:56:25,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:25,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:25,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775154530] [2020-09-24 22:56:25,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:25,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:25,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:25,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:25,874 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 8 states. [2020-09-24 22:56:26,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:26,928 INFO L93 Difference]: Finished difference Result 337 states and 343 transitions. [2020-09-24 22:56:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:56:26,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 22:56:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:26,930 INFO L225 Difference]: With dead ends: 337 [2020-09-24 22:56:26,931 INFO L226 Difference]: Without dead ends: 335 [2020-09-24 22:56:26,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:56:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-24 22:56:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 197. [2020-09-24 22:56:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 22:56:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 22:56:26,940 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 22:56:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:26,940 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 22:56:26,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:26,940 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 22:56:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 22:56:26,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:26,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:26,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:56:26,942 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:26,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-24 22:56:26,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:26,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927098845] [2020-09-24 22:56:26,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:26,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:27,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:27,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:30,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:30,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 22:56:30,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:56:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3733 [2020-09-24 22:56:30,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 22:56:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:56:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:30,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:30,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:30,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:30,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:30,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:30,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:30,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:30,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:30,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:30,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927098845] [2020-09-24 22:56:30,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:30,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:30,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954788483] [2020-09-24 22:56:30,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:30,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:30,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:30,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:30,797 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 8 states. [2020-09-24 22:56:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:31,333 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-24 22:56:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:31,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 22:56:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:31,335 INFO L225 Difference]: With dead ends: 197 [2020-09-24 22:56:31,335 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 22:56:31,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 22:56:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-24 22:56:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 22:56:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-24 22:56:31,344 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-24 22:56:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:31,344 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-24 22:56:31,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-24 22:56:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 22:56:31,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:31,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:31,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:56:31,347 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:31,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:31,347 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-24 22:56:31,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:31,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325887879] [2020-09-24 22:56:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:31,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:31,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:32,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1572 [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 22:56:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 22:56:32,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:33,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:33,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:33,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:33,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:33,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:33,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:33,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:33,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325887879] [2020-09-24 22:56:33,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:33,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:33,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347781665] [2020-09-24 22:56:33,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:33,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:33,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:33,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:33,044 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 8 states. [2020-09-24 22:56:33,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:33,620 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-24 22:56:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 22:56:33,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-24 22:56:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:33,622 INFO L225 Difference]: With dead ends: 297 [2020-09-24 22:56:33,622 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 22:56:33,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:56:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 22:56:33,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-24 22:56:33,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 22:56:33,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-24 22:56:33,633 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-24 22:56:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:33,633 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-24 22:56:33,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-24 22:56:33,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 22:56:33,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:33,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:33,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:56:33,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:33,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-24 22:56:33,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:33,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045281757] [2020-09-24 22:56:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:33,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:33,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:35,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:35,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 22:56:35,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:56:35,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1674 [2020-09-24 22:56:35,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 22:56:35,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:56:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:35,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:35,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:35,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:35,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:35,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:35,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:35,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:35,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:35,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045281757] [2020-09-24 22:56:35,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:35,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:56:35,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293163323] [2020-09-24 22:56:35,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:56:35,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:35,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:56:35,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:56:35,416 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 9 states. [2020-09-24 22:56:35,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:35,902 INFO L93 Difference]: Finished difference Result 198 states and 203 transitions. [2020-09-24 22:56:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:56:35,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-09-24 22:56:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:35,904 INFO L225 Difference]: With dead ends: 198 [2020-09-24 22:56:35,904 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 22:56:35,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:56:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 22:56:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 191. [2020-09-24 22:56:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 22:56:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2020-09-24 22:56:35,912 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75 [2020-09-24 22:56:35,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:35,913 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2020-09-24 22:56:35,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:56:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2020-09-24 22:56:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 22:56:35,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:35,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:35,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:56:35,915 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times [2020-09-24 22:56:35,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:35,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619459239] [2020-09-24 22:56:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:35,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:35,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:36,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:36,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:40,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:40,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 22:56:40,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 22:56:40,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 22:56:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:56:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 22:56:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:56:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:41,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:41,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:41,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:41,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:41,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:56:41,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:41,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:41,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619459239] [2020-09-24 22:56:41,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:41,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:41,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597211411] [2020-09-24 22:56:41,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:41,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:41,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:41,029 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 8 states. [2020-09-24 22:56:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:41,639 INFO L93 Difference]: Finished difference Result 191 states and 196 transitions. [2020-09-24 22:56:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:56:41,640 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-24 22:56:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:41,641 INFO L225 Difference]: With dead ends: 191 [2020-09-24 22:56:41,641 INFO L226 Difference]: Without dead ends: 189 [2020-09-24 22:56:41,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:56:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-24 22:56:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-24 22:56:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 22:56:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2020-09-24 22:56:41,649 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 80 [2020-09-24 22:56:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:41,650 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2020-09-24 22:56:41,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:56:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2020-09-24 22:56:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 22:56:41,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:41,651 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:41,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:56:41,652 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-24 22:56:41,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:41,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448181520] [2020-09-24 22:56:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:41,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:41,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:41,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:43,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:43,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 22:56:43,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:43,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2259 [2020-09-24 22:56:43,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:56:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 22:56:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:56:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:44,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:44,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:44,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448181520] [2020-09-24 22:56:44,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:56:44,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:56:44,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519538016] [2020-09-24 22:56:44,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:56:44,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:56:44,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:44,095 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 10 states. [2020-09-24 22:56:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:45,208 INFO L93 Difference]: Finished difference Result 413 states and 422 transitions. [2020-09-24 22:56:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:56:45,208 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-24 22:56:45,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:45,211 INFO L225 Difference]: With dead ends: 413 [2020-09-24 22:56:45,211 INFO L226 Difference]: Without dead ends: 411 [2020-09-24 22:56:45,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:56:45,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-24 22:56:45,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 182. [2020-09-24 22:56:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-24 22:56:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions. [2020-09-24 22:56:45,221 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86 [2020-09-24 22:56:45,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:45,221 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 187 transitions. [2020-09-24 22:56:45,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:56:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions. [2020-09-24 22:56:45,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 22:56:45,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:45,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:45,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:56:45,223 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:45,224 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-24 22:56:45,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:45,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039645826] [2020-09-24 22:56:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:45,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:45,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:47,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:47,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 22:56:47,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:56:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2156 [2020-09-24 22:56:47,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:56:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 22:56:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:56:47,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:47,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:47,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:47,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:47,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:47,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:56:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:47,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039645826] [2020-09-24 22:56:47,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:56:47,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:56:47,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583008853] [2020-09-24 22:56:47,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:56:47,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:47,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:56:47,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:56:47,582 INFO L87 Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 10 states. [2020-09-24 22:56:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:48,583 INFO L93 Difference]: Finished difference Result 288 states and 294 transitions. [2020-09-24 22:56:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:56:48,584 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-09-24 22:56:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:48,586 INFO L225 Difference]: With dead ends: 288 [2020-09-24 22:56:48,586 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 22:56:48,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:56:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 22:56:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 169. [2020-09-24 22:56:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-24 22:56:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions. [2020-09-24 22:56:48,594 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86 [2020-09-24 22:56:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:48,594 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 172 transitions. [2020-09-24 22:56:48,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:56:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions. [2020-09-24 22:56:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 22:56:48,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:48,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:48,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:56:48,596 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times [2020-09-24 22:56:48,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:48,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910477499] [2020-09-24 22:56:48,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:48,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:48,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:48,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:48,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:48,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:53,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:53,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 22:56:53,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:56:53,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 22:56:53,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:56:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 22:56:53,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:53,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:53,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:53,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:53,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:53,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:53,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910477499] [2020-09-24 22:56:53,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:53,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:56:53,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121810353] [2020-09-24 22:56:53,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:56:53,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:53,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:56:53,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:56:53,797 INFO L87 Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 9 states. [2020-09-24 22:56:54,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:56:54,709 INFO L93 Difference]: Finished difference Result 185 states and 188 transitions. [2020-09-24 22:56:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:56:54,710 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-09-24 22:56:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:56:54,711 INFO L225 Difference]: With dead ends: 185 [2020-09-24 22:56:54,711 INFO L226 Difference]: Without dead ends: 183 [2020-09-24 22:56:54,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:56:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-24 22:56:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2020-09-24 22:56:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 22:56:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions. [2020-09-24 22:56:54,719 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94 [2020-09-24 22:56:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:56:54,719 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 170 transitions. [2020-09-24 22:56:54,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:56:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions. [2020-09-24 22:56:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 22:56:54,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:56:54,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:56:54,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 22:56:54,721 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:56:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:56:54,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times [2020-09-24 22:56:54,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:56:54,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449653916] [2020-09-24 22:56:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:56:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:54,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:56,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:59,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:59,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 22:56:59,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 22:56:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 22:56:59,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 22:56:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 22:56:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 22:56:59,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:59,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:56:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:56:59,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:56:59,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:56:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:56:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:56:59,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449653916] [2020-09-24 22:56:59,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:56:59,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:56:59,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040889635] [2020-09-24 22:56:59,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:56:59,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:56:59,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:56:59,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:56:59,855 INFO L87 Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states. [2020-09-24 22:57:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:00,476 INFO L93 Difference]: Finished difference Result 167 states and 170 transitions. [2020-09-24 22:57:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:57:00,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-24 22:57:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:00,479 INFO L225 Difference]: With dead ends: 167 [2020-09-24 22:57:00,479 INFO L226 Difference]: Without dead ends: 165 [2020-09-24 22:57:00,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:57:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-24 22:57:00,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-24 22:57:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-24 22:57:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 168 transitions. [2020-09-24 22:57:00,490 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 168 transitions. Word has length 99 [2020-09-24 22:57:00,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:00,490 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 168 transitions. [2020-09-24 22:57:00,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:57:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 168 transitions. [2020-09-24 22:57:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 22:57:00,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:00,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:00,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 22:57:00,492 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:00,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1977584034, now seen corresponding path program 1 times [2020-09-24 22:57:00,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:00,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685118300] [2020-09-24 22:57:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:57:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-24 22:57:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:57:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:05,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:05,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:05,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:05,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:57:05,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:57:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:05,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:05,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685118300] [2020-09-24 22:57:05,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:05,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:57:05,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329253012] [2020-09-24 22:57:05,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:57:05,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:05,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:57:05,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:57:05,629 INFO L87 Difference]: Start difference. First operand 165 states and 168 transitions. Second operand 8 states. [2020-09-24 22:57:06,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:06,710 INFO L93 Difference]: Finished difference Result 244 states and 248 transitions. [2020-09-24 22:57:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:57:06,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2020-09-24 22:57:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:06,713 INFO L225 Difference]: With dead ends: 244 [2020-09-24 22:57:06,713 INFO L226 Difference]: Without dead ends: 242 [2020-09-24 22:57:06,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:57:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-09-24 22:57:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 172. [2020-09-24 22:57:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-24 22:57:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 175 transitions. [2020-09-24 22:57:06,721 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 175 transitions. Word has length 106 [2020-09-24 22:57:06,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:06,722 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 175 transitions. [2020-09-24 22:57:06,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:57:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 175 transitions. [2020-09-24 22:57:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 22:57:06,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:06,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:06,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 22:57:06,724 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:06,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:06,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1363709155, now seen corresponding path program 1 times [2020-09-24 22:57:06,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:06,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056372825] [2020-09-24 22:57:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:07,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:07,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:07,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking...