/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:08:14,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:08:14,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:08:14,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:08:14,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:08:14,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:08:14,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:08:14,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:08:14,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:08:14,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:08:14,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:08:14,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:08:14,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:08:14,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:08:14,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:08:14,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:08:14,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:08:14,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:08:14,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:08:14,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:08:14,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:08:14,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:08:14,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:08:14,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:08:14,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:08:14,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:08:14,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:08:14,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:08:14,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:08:14,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:08:14,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:08:14,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:08:14,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:08:14,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:08:14,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:08:14,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:08:14,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:08:14,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:08:14,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:08:14,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:08:14,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:08:14,766 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 [2020-10-12 15:08:14,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:08:14,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:08:14,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:08:14,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:08:14,820 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:08:14,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:08:14,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:08:14,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:08:14,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:08:14,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:08:14,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:08:14,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:08:14,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:08:14,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:08:14,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:08:14,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:08:14,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:08:14,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:08:14,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:08:14,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:08:14,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:08:14,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:08:14,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:08:14,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:08:14,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:08:14,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:08:14,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:08:14,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:08:14,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:08:14,827 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:08:15,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:08:15,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:08:15,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:08:15,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:08:15,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:08:15,137 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53.c [2020-10-12 15:08:15,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397613dc3/0c820fad85e84b8c821707ed4989266d/FLAG6e23237b8 [2020-10-12 15:08:15,935 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:08:15,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label53.c [2020-10-12 15:08:15,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397613dc3/0c820fad85e84b8c821707ed4989266d/FLAG6e23237b8 [2020-10-12 15:08:16,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/397613dc3/0c820fad85e84b8c821707ed4989266d [2020-10-12 15:08:16,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:08:16,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:08:16,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:16,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:08:16,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:08:16,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:16" (1/1) ... [2020-10-12 15:08:16,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9c66bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:16, skipping insertion in model container [2020-10-12 15:08:16,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:08:16" (1/1) ... [2020-10-12 15:08:16,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:08:16,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:08:17,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:17,576 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:08:18,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:08:18,147 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:08:18,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18 WrapperNode [2020-10-12 15:08:18,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:08:18,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:08:18,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:08:18,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:08:18,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (1/1) ... [2020-10-12 15:08:18,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:08:18,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:08:18,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:08:18,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:08:18,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (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 [2020-10-12 15:08:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:08:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:08:18,612 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 15:08:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 15:08:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 15:08:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:08:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 15:08:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 15:08:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:08:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:08:24,829 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:08:24,829 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:08:24,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:08:24 BoogieIcfgContainer [2020-10-12 15:08:24,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:08:24,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:08:24,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:08:24,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:08:24,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:08:16" (1/3) ... [2020-10-12 15:08:24,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c78a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:08:24, skipping insertion in model container [2020-10-12 15:08:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:08:18" (2/3) ... [2020-10-12 15:08:24,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c78a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:08:24, skipping insertion in model container [2020-10-12 15:08:24,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:08:24" (3/3) ... [2020-10-12 15:08:24,857 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label53.c [2020-10-12 15:08:24,871 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:08:24,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:08:24,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:08:24,931 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:08:24,931 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:08:24,931 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:08:24,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:08:24,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:08:24,932 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:08:24,932 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:08:24,932 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:08:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 15:08:24,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 15:08:24,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:24,990 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] [2020-10-12 15:08:24,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:24,998 INFO L82 PathProgramCache]: Analyzing trace with hash -954774470, now seen corresponding path program 1 times [2020-10-12 15:08:25,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:25,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383085965] [2020-10-12 15:08:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:25,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 15:08:25,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-12 15:08:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:08:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:08:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 15:08:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:08:25,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:25,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:25,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:25,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:25,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:08:25,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:25,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:08:25,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:25,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:08:25,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383085965] [2020-10-12 15:08:25,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:08:25,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:08:25,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773631034] [2020-10-12 15:08:25,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:08:25,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:25,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:08:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:08:25,728 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-12 15:08:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:36,972 INFO L93 Difference]: Finished difference Result 2984 states and 5767 transitions. [2020-10-12 15:08:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:08:36,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-12 15:08:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:37,012 INFO L225 Difference]: With dead ends: 2984 [2020-10-12 15:08:37,013 INFO L226 Difference]: Without dead ends: 2142 [2020-10-12 15:08:37,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:37,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2020-10-12 15:08:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2135. [2020-10-12 15:08:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-10-12 15:08:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3227 transitions. [2020-10-12 15:08:37,250 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3227 transitions. Word has length 39 [2020-10-12 15:08:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:37,250 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 3227 transitions. [2020-10-12 15:08:37,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:08:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3227 transitions. [2020-10-12 15:08:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-12 15:08:37,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:37,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:08:37,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:08:37,260 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:37,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:37,261 INFO L82 PathProgramCache]: Analyzing trace with hash 703150814, now seen corresponding path program 1 times [2020-10-12 15:08:37,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:37,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647357216] [2020-10-12 15:08:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:37,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:37,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:38,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:38,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 15:08:38,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:08:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 763 [2020-10-12 15:08:38,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:08:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:08:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:08:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:08:38,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:38,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:38,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:38,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:38,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:08:38,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:08:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:08:38,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:38,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:38,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 15:08:38,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:38,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 15:08:38,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:38,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 15:08:38,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:08:38,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647357216] [2020-10-12 15:08:38,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:08:38,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:08:38,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686981229] [2020-10-12 15:08:38,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:38,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:38,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:38,369 INFO L87 Difference]: Start difference. First operand 2135 states and 3227 transitions. Second operand 7 states. [2020-10-12 15:08:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:08:51,362 INFO L93 Difference]: Finished difference Result 6518 states and 9961 transitions. [2020-10-12 15:08:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:08:51,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-12 15:08:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:08:51,396 INFO L225 Difference]: With dead ends: 6518 [2020-10-12 15:08:51,397 INFO L226 Difference]: Without dead ends: 4389 [2020-10-12 15:08:51,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:08:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2020-10-12 15:08:51,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4341. [2020-10-12 15:08:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4341 states. [2020-10-12 15:08:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 5864 transitions. [2020-10-12 15:08:51,539 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 5864 transitions. Word has length 109 [2020-10-12 15:08:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:08:51,540 INFO L479 AbstractCegarLoop]: Abstraction has 4341 states and 5864 transitions. [2020-10-12 15:08:51,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:08:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 5864 transitions. [2020-10-12 15:08:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-12 15:08:51,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:08:51,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:08:51,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:08:51,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:08:51,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:08:51,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2011029690, now seen corresponding path program 1 times [2020-10-12 15:08:51,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:08:51,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106641289] [2020-10-12 15:08:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:08:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:51,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:51,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:52,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:52,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 15:08:52,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:08:52,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-12 15:08:52,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:52,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:08:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:08:52,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 15:08:52,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:52,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:08:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:52,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:52,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:08:52,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:08:52,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:08:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:08:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:08:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:08:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:08:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:08:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:08:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:08:52,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-12 15:08:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:08:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-12 15:08:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:08:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:08:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:08:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-12 15:08:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:08:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:08:53,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106641289] [2020-10-12 15:08:53,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:08:53,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 15:08:53,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770695994] [2020-10-12 15:08:53,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:08:53,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:08:53,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:08:53,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:08:53,148 INFO L87 Difference]: Start difference. First operand 4341 states and 5864 transitions. Second operand 7 states. [2020-10-12 15:09:02,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:02,167 INFO L93 Difference]: Finished difference Result 13232 states and 18290 transitions. [2020-10-12 15:09:02,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:09:02,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-12 15:09:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:02,218 INFO L225 Difference]: With dead ends: 13232 [2020-10-12 15:09:02,219 INFO L226 Difference]: Without dead ends: 8897 [2020-10-12 15:09:02,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:09:02,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8897 states. [2020-10-12 15:09:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8897 to 8056. [2020-10-12 15:09:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8056 states. [2020-10-12 15:09:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8056 states to 8056 states and 10135 transitions. [2020-10-12 15:09:02,451 INFO L78 Accepts]: Start accepts. Automaton has 8056 states and 10135 transitions. Word has length 171 [2020-10-12 15:09:02,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:02,451 INFO L479 AbstractCegarLoop]: Abstraction has 8056 states and 10135 transitions. [2020-10-12 15:09:02,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:09:02,452 INFO L276 IsEmpty]: Start isEmpty. Operand 8056 states and 10135 transitions. [2020-10-12 15:09:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-12 15:09:02,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:02,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 15:09:02,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:09:02,464 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:02,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:02,464 INFO L82 PathProgramCache]: Analyzing trace with hash 970265915, now seen corresponding path program 1 times [2020-10-12 15:09:02,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:02,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920668521] [2020-10-12 15:09:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:03,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:05,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-12 15:09:05,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:09:05,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3183 [2020-10-12 15:09:05,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:05,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:05,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 15:09:05,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:05,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:05,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:05,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:09:05,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:05,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:05,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:05,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:05,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:06,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:06,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:09:06,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 15:09:06,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:06,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:09:06,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:06,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-12 15:09:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:06,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:06,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:06,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:09:06,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:06,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 15:09:06,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:09:06,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:06,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 64 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 15:09:06,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920668521] [2020-10-12 15:09:06,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:06,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:09:06,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669517649] [2020-10-12 15:09:06,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:09:06,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:06,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:09:06,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:09:06,526 INFO L87 Difference]: Start difference. First operand 8056 states and 10135 transitions. Second operand 8 states. [2020-10-12 15:09:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:18,520 INFO L93 Difference]: Finished difference Result 19230 states and 23959 transitions. [2020-10-12 15:09:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 15:09:18,521 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-10-12 15:09:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:18,593 INFO L225 Difference]: With dead ends: 19230 [2020-10-12 15:09:18,594 INFO L226 Difference]: Without dead ends: 11180 [2020-10-12 15:09:18,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:09:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2020-10-12 15:09:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 10273. [2020-10-12 15:09:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10273 states. [2020-10-12 15:09:18,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10273 states to 10273 states and 12644 transitions. [2020-10-12 15:09:18,917 INFO L78 Accepts]: Start accepts. Automaton has 10273 states and 12644 transitions. Word has length 234 [2020-10-12 15:09:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:18,918 INFO L479 AbstractCegarLoop]: Abstraction has 10273 states and 12644 transitions. [2020-10-12 15:09:18,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:09:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 10273 states and 12644 transitions. [2020-10-12 15:09:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-10-12 15:09:18,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:18,929 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:18,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:09:18,929 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash 695663087, now seen corresponding path program 1 times [2020-10-12 15:09:18,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:18,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107226610] [2020-10-12 15:09:18,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:19,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:19,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:22,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-12 15:09:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:09:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3305 [2020-10-12 15:09:22,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 15:09:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-12 15:09:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:22,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:22,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:22,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:22,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:09:22,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:22,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:22,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:22,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:22,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:22,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 15:09:22,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-12 15:09:22,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 15:09:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 15:09:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:22,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:22,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:22,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:09:22,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:22,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-12 15:09:22,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:22,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:09:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:22,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-12 15:09:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-12 15:09:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:23,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:23,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:23,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 15:09:23,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:09:23,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:23,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-12 15:09:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:09:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 219 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-12 15:09:24,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107226610] [2020-10-12 15:09:24,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:24,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 15:09:24,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662627938] [2020-10-12 15:09:24,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:09:24,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:24,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:09:24,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:09:24,033 INFO L87 Difference]: Start difference. First operand 10273 states and 12644 transitions. Second operand 8 states. [2020-10-12 15:09:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:09:42,077 INFO L93 Difference]: Finished difference Result 30945 states and 40636 transitions. [2020-10-12 15:09:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 15:09:42,078 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 420 [2020-10-12 15:09:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:09:42,146 INFO L225 Difference]: With dead ends: 30945 [2020-10-12 15:09:42,146 INFO L226 Difference]: Without dead ends: 19064 [2020-10-12 15:09:42,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:09:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2020-10-12 15:09:42,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 16773. [2020-10-12 15:09:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16773 states. [2020-10-12 15:09:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16773 states to 16773 states and 19097 transitions. [2020-10-12 15:09:42,599 INFO L78 Accepts]: Start accepts. Automaton has 16773 states and 19097 transitions. Word has length 420 [2020-10-12 15:09:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:09:42,600 INFO L479 AbstractCegarLoop]: Abstraction has 16773 states and 19097 transitions. [2020-10-12 15:09:42,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:09:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 16773 states and 19097 transitions. [2020-10-12 15:09:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2020-10-12 15:09:42,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:09:42,614 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:09:42,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:09:42,614 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:09:42,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:09:42,615 INFO L82 PathProgramCache]: Analyzing trace with hash -579947992, now seen corresponding path program 1 times [2020-10-12 15:09:42,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:09:42,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145455616] [2020-10-12 15:09:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:09:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:42,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:42,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:45,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:45,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:47,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:47,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 541 [2020-10-12 15:09:47,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:09:47,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 15:09:47,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:09:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:09:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-12 15:09:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:47,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:09:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:47,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:47,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:47,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:09:47,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:47,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:09:47,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:09:47,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:09:47,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:09:47,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:47,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:09:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:48,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:48,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:48,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:09:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-12 15:09:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:09:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-12 15:09:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:09:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:48,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:09:49,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:09:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:09:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:09:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 15:09:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:09:49,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-12 15:09:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:49,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:09:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 15:09:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-12 15:09:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:49,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-12 15:09:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:09:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:09:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:09:49,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:09:49,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:09:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:09:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:09:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:09:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-12 15:09:49,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:09:49,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:09:50,100 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 169 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-12 15:09:50,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145455616] [2020-10-12 15:09:50,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:09:50,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 15:09:50,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686507455] [2020-10-12 15:09:50,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:09:50,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:09:50,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:09:50,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:09:50,105 INFO L87 Difference]: Start difference. First operand 16773 states and 19097 transitions. Second operand 9 states. [2020-10-12 15:10:00,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:00,767 INFO L93 Difference]: Finished difference Result 43794 states and 50617 transitions. [2020-10-12 15:10:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 15:10:00,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 525 [2020-10-12 15:10:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:00,856 INFO L225 Difference]: With dead ends: 43794 [2020-10-12 15:10:00,856 INFO L226 Difference]: Without dead ends: 26323 [2020-10-12 15:10:00,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-12 15:10:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26323 states. [2020-10-12 15:10:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26323 to 25537. [2020-10-12 15:10:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25537 states. [2020-10-12 15:10:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25537 states to 25537 states and 29152 transitions. [2020-10-12 15:10:01,409 INFO L78 Accepts]: Start accepts. Automaton has 25537 states and 29152 transitions. Word has length 525 [2020-10-12 15:10:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:01,410 INFO L479 AbstractCegarLoop]: Abstraction has 25537 states and 29152 transitions. [2020-10-12 15:10:01,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:10:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 25537 states and 29152 transitions. [2020-10-12 15:10:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2020-10-12 15:10:01,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:01,457 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:01,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:10:01,458 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:01,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:01,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1545557073, now seen corresponding path program 1 times [2020-10-12 15:10:01,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:01,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177408642] [2020-10-12 15:10:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:03,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:06,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:06,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1074 [2020-10-12 15:10:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:06,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5143 [2020-10-12 15:10:06,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:06,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 15:10:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 15:10:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:07,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:07,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:07,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:07,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:07,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:07,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:07,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:07,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:07,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:07,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:07,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:07,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:07,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:07,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:07,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:07,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:07,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:07,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:07,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 15:10:07,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:07,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:07,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:07,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:07,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:07,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:10:07,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:07,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:07,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:07,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:07,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:07,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 15:10:07,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:07,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 15:10:07,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:07,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 15:10:07,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:08,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:08,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:08,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:10:08,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:08,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 15:10:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:08,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 15:10:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:08,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-12 15:10:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:08,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:08,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 15:10:08,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:10:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-12 15:10:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 318 proven. 88 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-10-12 15:10:08,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177408642] [2020-10-12 15:10:08,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:08,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:08,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056010909] [2020-10-12 15:10:08,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:08,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:08,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:08,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:08,800 INFO L87 Difference]: Start difference. First operand 25537 states and 29152 transitions. Second operand 7 states. [2020-10-12 15:10:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:18,649 INFO L93 Difference]: Finished difference Result 61193 states and 71663 transitions. [2020-10-12 15:10:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:10:18,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1052 [2020-10-12 15:10:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:18,750 INFO L225 Difference]: With dead ends: 61193 [2020-10-12 15:10:18,750 INFO L226 Difference]: Without dead ends: 35662 [2020-10-12 15:10:18,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:10:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35662 states. [2020-10-12 15:10:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35662 to 34890. [2020-10-12 15:10:19,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34890 states. [2020-10-12 15:10:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34890 states to 34890 states and 40372 transitions. [2020-10-12 15:10:19,591 INFO L78 Accepts]: Start accepts. Automaton has 34890 states and 40372 transitions. Word has length 1052 [2020-10-12 15:10:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:19,593 INFO L479 AbstractCegarLoop]: Abstraction has 34890 states and 40372 transitions. [2020-10-12 15:10:19,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 34890 states and 40372 transitions. [2020-10-12 15:10:19,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1170 [2020-10-12 15:10:19,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:19,658 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:19,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:10:19,658 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash -667040717, now seen corresponding path program 1 times [2020-10-12 15:10:19,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:19,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71359923] [2020-10-12 15:10:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:22,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1191 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-12 15:10:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-12 15:10:25,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:25,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:25,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-12 15:10:25,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:25,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:10:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:10:25,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:10:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:25,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:10:25,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:10:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:25,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:10:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:26,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:26,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 15:10:26,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:10:26,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-12 15:10:26,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:10:26,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-12 15:10:26,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 577 proven. 6 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2020-10-12 15:10:27,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71359923] [2020-10-12 15:10:27,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:27,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:10:27,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535587737] [2020-10-12 15:10:27,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:10:27,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:10:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:10:27,039 INFO L87 Difference]: Start difference. First operand 34890 states and 40372 transitions. Second operand 7 states. [2020-10-12 15:10:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:36,534 INFO L93 Difference]: Finished difference Result 84005 states and 99841 transitions. [2020-10-12 15:10:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:10:36,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1169 [2020-10-12 15:10:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:36,709 INFO L225 Difference]: With dead ends: 84005 [2020-10-12 15:10:36,710 INFO L226 Difference]: Without dead ends: 49121 [2020-10-12 15:10:36,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:10:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49121 states. [2020-10-12 15:10:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49121 to 49034. [2020-10-12 15:10:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49034 states. [2020-10-12 15:10:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49034 states to 49034 states and 56622 transitions. [2020-10-12 15:10:37,645 INFO L78 Accepts]: Start accepts. Automaton has 49034 states and 56622 transitions. Word has length 1169 [2020-10-12 15:10:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:37,646 INFO L479 AbstractCegarLoop]: Abstraction has 49034 states and 56622 transitions. [2020-10-12 15:10:37,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:10:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 49034 states and 56622 transitions. [2020-10-12 15:10:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2020-10-12 15:10:37,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:37,676 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:37,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:10:37,677 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:37,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1528355107, now seen corresponding path program 1 times [2020-10-12 15:10:37,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:37,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745914340] [2020-10-12 15:10:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:37,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:38,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:38,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1247 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1208 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 15:10:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:10:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:10:43,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:10:43,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:10:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:10:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:10:43,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:10:43,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:10:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:10:43,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 15:10:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:10:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:10:43,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 15:10:43,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:10:43,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:10:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:10:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 15:10:43,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:10:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:10:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:43,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:10:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:43,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:43,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:10:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 15:10:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:10:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 133 proven. 4 refuted. 0 times theorem prover too weak. 1117 trivial. 0 not checked. [2020-10-12 15:10:45,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745914340] [2020-10-12 15:10:45,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:10:45,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 15:10:45,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767605423] [2020-10-12 15:10:45,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:10:45,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:10:45,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:10:45,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:10:45,565 INFO L87 Difference]: Start difference. First operand 49034 states and 56622 transitions. Second operand 5 states. [2020-10-12 15:10:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:10:54,519 INFO L93 Difference]: Finished difference Result 115712 states and 136589 transitions. [2020-10-12 15:10:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 15:10:54,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1225 [2020-10-12 15:10:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:10:54,708 INFO L225 Difference]: With dead ends: 115712 [2020-10-12 15:10:54,709 INFO L226 Difference]: Without dead ends: 61718 [2020-10-12 15:10:54,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 15:10:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61718 states. [2020-10-12 15:10:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61718 to 58902. [2020-10-12 15:10:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58902 states. [2020-10-12 15:10:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58902 states to 58902 states and 67351 transitions. [2020-10-12 15:10:55,988 INFO L78 Accepts]: Start accepts. Automaton has 58902 states and 67351 transitions. Word has length 1225 [2020-10-12 15:10:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:10:55,989 INFO L479 AbstractCegarLoop]: Abstraction has 58902 states and 67351 transitions. [2020-10-12 15:10:55,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:10:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 58902 states and 67351 transitions. [2020-10-12 15:10:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2020-10-12 15:10:56,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:10:56,031 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:10:56,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 15:10:56,031 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:10:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:10:56,032 INFO L82 PathProgramCache]: Analyzing trace with hash -284412125, now seen corresponding path program 1 times [2020-10-12 15:10:56,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:10:56,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435282084] [2020-10-12 15:10:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:10:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:10:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:56,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:58,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:10:59,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1309 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-12 15:11:01,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-12 15:11:01,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:01,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:01,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:01,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:01,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 15:11:01,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:01,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:01,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:01,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:01,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:01,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:01,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:01,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:01,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:11:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:02,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 15:11:02,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:02,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:11:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:02,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:02,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:02,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-12 15:11:02,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-12 15:11:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-12 15:11:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:02,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1598 backedges. 461 proven. 95 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2020-10-12 15:11:03,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435282084] [2020-10-12 15:11:03,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:03,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:11:03,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003540289] [2020-10-12 15:11:03,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:11:03,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:03,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:11:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:11:03,174 INFO L87 Difference]: Start difference. First operand 58902 states and 67351 transitions. Second operand 7 states. [2020-10-12 15:11:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:18,812 INFO L93 Difference]: Finished difference Result 131926 states and 153849 transitions. [2020-10-12 15:11:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:11:18,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1285 [2020-10-12 15:11:18,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:18,998 INFO L225 Difference]: With dead ends: 131926 [2020-10-12 15:11:18,999 INFO L226 Difference]: Without dead ends: 68775 [2020-10-12 15:11:19,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:11:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68775 states. [2020-10-12 15:11:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68775 to 68749. [2020-10-12 15:11:19,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68749 states. [2020-10-12 15:11:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68749 states to 68749 states and 78189 transitions. [2020-10-12 15:11:20,085 INFO L78 Accepts]: Start accepts. Automaton has 68749 states and 78189 transitions. Word has length 1285 [2020-10-12 15:11:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:20,086 INFO L479 AbstractCegarLoop]: Abstraction has 68749 states and 78189 transitions. [2020-10-12 15:11:20,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:11:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 68749 states and 78189 transitions. [2020-10-12 15:11:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1443 [2020-10-12 15:11:20,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:11:20,142 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:11:20,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 15:11:20,143 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:11:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:11:20,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1950753705, now seen corresponding path program 1 times [2020-10-12 15:11:20,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:11:20,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973784193] [2020-10-12 15:11:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:11:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:20,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:20,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:21,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1468 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1091 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 336 [2020-10-12 15:11:25,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:25,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:11:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:25,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:11:25,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:11:25,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:25,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:25,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 15:11:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:25,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:25,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:25,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 15:11:25,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:25,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 15:11:25,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:25,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:25,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:25,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 15:11:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:25,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:25,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:25,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 15:11:25,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:25,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:11:25,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:25,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:25,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 15:11:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-12 15:11:26,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-12 15:11:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:11:26,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-12 15:11:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 15:11:26,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:11:26,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:11:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:11:26,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 15:11:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-12 15:11:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:11:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:11:26,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-12 15:11:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:26,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 15:11:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:11:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:11:26,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:11:26,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 15:11:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 15:11:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:11:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 1037 proven. 2 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2020-10-12 15:11:28,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973784193] [2020-10-12 15:11:28,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:11:28,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 15:11:28,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078864434] [2020-10-12 15:11:28,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:11:28,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:11:28,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:11:28,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:11:28,987 INFO L87 Difference]: Start difference. First operand 68749 states and 78189 transitions. Second operand 7 states. [2020-10-12 15:11:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:11:42,260 INFO L93 Difference]: Finished difference Result 136850 states and 155872 transitions. [2020-10-12 15:11:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:11:42,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1442 [2020-10-12 15:11:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:11:42,267 INFO L225 Difference]: With dead ends: 136850 [2020-10-12 15:11:42,267 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 15:11:42,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:11:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 15:11:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 15:11:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 15:11:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 15:11:42,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1442 [2020-10-12 15:11:42,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:11:42,417 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 15:11:42,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:11:42,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 15:11:42,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 15:11:42,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 15:11:42,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 15:11:45,664 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 133 [2020-10-12 15:11:46,714 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 133 [2020-10-12 15:11:49,097 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 346 DAG size of output: 46 [2020-10-12 15:11:50,966 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 346 DAG size of output: 46 [2020-10-12 15:11:52,653 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 346 DAG size of output: 46 [2020-10-12 15:11:53,220 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 39