/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/verifythis/tree_max.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 05:00:56,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 05:00:56,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 05:00:56,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 05:00:56,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 05:00:56,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 05:00:56,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 05:00:56,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 05:00:56,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 05:00:56,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 05:00:56,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 05:00:56,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 05:00:56,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 05:00:56,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 05:00:56,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 05:00:56,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 05:00:56,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 05:00:56,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 05:00:56,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 05:00:56,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 05:00:56,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 05:00:56,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 05:00:56,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 05:00:56,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 05:00:56,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 05:00:56,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 05:00:56,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 05:00:56,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 05:00:56,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 05:00:56,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 05:00:56,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 05:00:56,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 05:00:56,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 05:00:56,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 05:00:56,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 05:00:56,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 05:00:56,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 05:00:56,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 05:00:56,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 05:00:56,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 05:00:56,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 05:00:56,769 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 [2020-10-15 05:00:56,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 05:00:56,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 05:00:56,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 05:00:56,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 05:00:56,793 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 05:00:56,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 05:00:56,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 05:00:56,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 05:00:56,794 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 05:00:56,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 05:00:56,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 05:00:56,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 05:00:56,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 05:00:56,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 05:00:56,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 05:00:56,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 05:00:56,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 05:00:56,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 05:00:56,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 05:00:56,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 05:00:56,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 05:00:56,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 05:00:56,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 05:00:56,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 05:00:56,798 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 05:00:57,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 05:00:57,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 05:00:57,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 05:00:57,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 05:00:57,133 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 05:00:57,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_max.c [2020-10-15 05:00:57,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b221334/57d9b26bef7842ae890aab699f696849/FLAG051049cce [2020-10-15 05:00:57,659 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 05:00:57,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/tree_max.c [2020-10-15 05:00:57,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b221334/57d9b26bef7842ae890aab699f696849/FLAG051049cce [2020-10-15 05:00:58,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b221334/57d9b26bef7842ae890aab699f696849 [2020-10-15 05:00:58,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 05:00:58,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 05:00:58,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 05:00:58,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 05:00:58,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 05:00:58,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ab6a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58, skipping insertion in model container [2020-10-15 05:00:58,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 05:00:58,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 05:00:58,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 05:00:58,294 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 05:00:58,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 05:00:58,352 INFO L208 MainTranslator]: Completed translation [2020-10-15 05:00:58,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58 WrapperNode [2020-10-15 05:00:58,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 05:00:58,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 05:00:58,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 05:00:58,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 05:00:58,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (1/1) ... [2020-10-15 05:00:58,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 05:00:58,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 05:00:58,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 05:00:58,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 05:00:58,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (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 [2020-10-15 05:00:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 05:00:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 05:00:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 05:00:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 05:00:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-10-15 05:00:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-10-15 05:00:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 05:00:58,564 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-10-15 05:00:58,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 05:00:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 05:00:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 05:00:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 05:00:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 05:00:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 05:00:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 05:00:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 05:00:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 05:00:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-10-15 05:00:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 05:00:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 05:00:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 05:00:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-10-15 05:00:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 05:00:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 05:00:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 05:00:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-10-15 05:00:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 05:00:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 05:00:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 05:00:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 05:00:58,951 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 05:00:58,952 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 05:00:58,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:00:58 BoogieIcfgContainer [2020-10-15 05:00:58,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 05:00:58,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 05:00:58,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 05:00:58,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 05:00:58,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:00:58" (1/3) ... [2020-10-15 05:00:58,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25963fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:00:58, skipping insertion in model container [2020-10-15 05:00:58,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:00:58" (2/3) ... [2020-10-15 05:00:58,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25963fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:00:58, skipping insertion in model container [2020-10-15 05:00:58,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:00:58" (3/3) ... [2020-10-15 05:00:58,981 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max.c [2020-10-15 05:00:58,995 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 05:00:59,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 05:00:59,018 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 05:00:59,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 05:00:59,046 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 05:00:59,046 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 05:00:59,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 05:00:59,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 05:00:59,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 05:00:59,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 05:00:59,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 05:00:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-15 05:00:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-15 05:00:59,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:00:59,076 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] [2020-10-15 05:00:59,076 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:00:59,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:00:59,082 INFO L82 PathProgramCache]: Analyzing trace with hash -788474151, now seen corresponding path program 1 times [2020-10-15 05:00:59,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:00:59,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996811071] [2020-10-15 05:00:59,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:00:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:00:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:00:59,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:00,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 05:01:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-15 05:01:00,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:00,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:00,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 05:01:00,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 05:01:00,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 05:01:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 05:01:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:00,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:00,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:00,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 05:01:00,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:00,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:00,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:00,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:00,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:00,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:00,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:00,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:00,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 05:01:00,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:00,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:00,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 05:01:00,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:00,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 05:01:00,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-15 05:01:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:00,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:00,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:00,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 05:01:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:00,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 05:01:00,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996811071] [2020-10-15 05:01:00,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 05:01:00,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 05:01:00,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660025741] [2020-10-15 05:01:00,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 05:01:00,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:01:00,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 05:01:00,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-15 05:01:00,472 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 10 states. [2020-10-15 05:01:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:01:01,193 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2020-10-15 05:01:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 05:01:01,195 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-15 05:01:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:01:01,210 INFO L225 Difference]: With dead ends: 94 [2020-10-15 05:01:01,211 INFO L226 Difference]: Without dead ends: 43 [2020-10-15 05:01:01,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-15 05:01:01,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-15 05:01:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-15 05:01:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-15 05:01:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2020-10-15 05:01:01,276 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 24 [2020-10-15 05:01:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:01:01,276 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2020-10-15 05:01:01,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 05:01:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2020-10-15 05:01:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-15 05:01:01,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:01:01,280 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 05:01:01,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 05:01:01,281 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:01:01,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:01:01,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1319299530, now seen corresponding path program 1 times [2020-10-15 05:01:01,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:01:01,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724600832] [2020-10-15 05:01:01,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:01:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:01,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:01,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:01,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:01,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-15 05:01:01,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:01,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-10-15 05:01:01,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:01,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 05:01:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 05:01:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 05:01:01,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:02,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:02,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:02,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:02,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:02,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:02,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:02,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:02,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:02,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:02,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:02,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:02,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 05:01:02,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 05:01:02,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:02,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 05:01:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 05:01:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:02,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:02,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:02,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:02,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 05:01:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:02,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 05:01:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:02,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:02,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:02,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:02,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:02,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 05:01:02,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:02,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 05:01:02,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 05:01:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:02,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:02,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:02,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 05:01:02,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:02,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 05:01:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 05:01:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-15 05:01:02,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724600832] [2020-10-15 05:01:02,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 05:01:02,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 05:01:02,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346711501] [2020-10-15 05:01:02,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 05:01:02,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:01:02,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 05:01:02,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-15 05:01:02,301 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 11 states. [2020-10-15 05:01:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:01:03,022 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2020-10-15 05:01:03,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 05:01:03,023 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-15 05:01:03,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:01:03,026 INFO L225 Difference]: With dead ends: 60 [2020-10-15 05:01:03,028 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 05:01:03,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-10-15 05:01:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 05:01:03,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-15 05:01:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 05:01:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-10-15 05:01:03,065 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 34 [2020-10-15 05:01:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:01:03,066 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-10-15 05:01:03,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 05:01:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-10-15 05:01:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 05:01:03,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:01:03,072 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-15 05:01:03,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 05:01:03,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:01:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:01:03,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1373602357, now seen corresponding path program 1 times [2020-10-15 05:01:03,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:01:03,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508412434] [2020-10-15 05:01:03,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:01:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:03,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:03,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 05:01:03,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-15 05:01:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:03,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 05:01:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 05:01:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 05:01:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:04,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:04,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 05:01:04,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 05:01:04,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:04,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:04,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:04,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:04,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:04,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:04,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:04,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:04,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 05:01:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 05:01:04,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 05:01:04,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 05:01:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 05:01:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 05:01:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:04,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:01:04,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 05:01:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:04,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:04,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:04,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:01:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:04,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 05:01:04,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508412434] [2020-10-15 05:01:04,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 05:01:04,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 05:01:04,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116558587] [2020-10-15 05:01:04,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 05:01:04,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:01:04,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 05:01:04,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-15 05:01:04,267 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 14 states. [2020-10-15 05:01:05,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:01:05,028 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2020-10-15 05:01:05,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 05:01:05,029 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2020-10-15 05:01:05,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:01:05,031 INFO L225 Difference]: With dead ends: 58 [2020-10-15 05:01:05,032 INFO L226 Difference]: Without dead ends: 56 [2020-10-15 05:01:05,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2020-10-15 05:01:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-15 05:01:05,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-10-15 05:01:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 05:01:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-10-15 05:01:05,044 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 47 [2020-10-15 05:01:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:01:05,045 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-10-15 05:01:05,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 05:01:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2020-10-15 05:01:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 05:01:05,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:01:05,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-15 05:01:05,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 05:01:05,048 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:01:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:01:05,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1560869568, now seen corresponding path program 1 times [2020-10-15 05:01:05,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:01:05,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472944572] [2020-10-15 05:01:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:01:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:05,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:07,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:07,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 05:01:07,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2518 [2020-10-15 05:01:07,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:07,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 05:01:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 05:01:07,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 05:01:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:07,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:07,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:07,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:07,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:07,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:07,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:07,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:07,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:07,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:07,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:07,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 05:01:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:07,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 05:01:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:07,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 05:01:07,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:07,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 05:01:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:08,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:01:08,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:08,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:08,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:08,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 05:01:08,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 05:01:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 05:01:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 05:01:08,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 05:01:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 05:01:08,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 05:01:08,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 05:01:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 05:01:08,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 05:01:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:08,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:08,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 05:01:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:08,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:08,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:08,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 05:01:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:08,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:08,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:08,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:08,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 05:01:08,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:08,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:08,325 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 05:01:08,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472944572] [2020-10-15 05:01:08,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 05:01:08,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 05:01:08,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131342744] [2020-10-15 05:01:08,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 05:01:08,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:01:08,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 05:01:08,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-15 05:01:08,329 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 15 states. [2020-10-15 05:01:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:01:09,121 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2020-10-15 05:01:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 05:01:09,122 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-10-15 05:01:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:01:09,124 INFO L225 Difference]: With dead ends: 82 [2020-10-15 05:01:09,124 INFO L226 Difference]: Without dead ends: 66 [2020-10-15 05:01:09,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-15 05:01:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-15 05:01:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-15 05:01:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-15 05:01:09,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2020-10-15 05:01:09,138 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 57 [2020-10-15 05:01:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:01:09,139 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2020-10-15 05:01:09,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 05:01:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2020-10-15 05:01:09,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 05:01:09,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:01:09,142 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 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] [2020-10-15 05:01:09,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 05:01:09,142 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:01:09,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:01:09,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1796722781, now seen corresponding path program 2 times [2020-10-15 05:01:09,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:01:09,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784871369] [2020-10-15 05:01:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:01:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:09,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:09,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 05:01:11,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:11,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-10-15 05:01:11,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 05:01:11,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-15 05:01:11,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 05:01:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:11,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 05:01:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 05:01:11,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 05:01:11,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 05:01:11,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:11,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:11,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 05:01:11,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 05:01:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:11,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:01:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:11,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:11,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 05:01:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 05:01:11,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 05:01:11,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 05:01:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 05:01:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 05:01:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:11,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:01:11,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-15 05:01:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:11,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 05:01:11,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 05:01:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 05:01:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 05:01:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 05:01:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 05:01:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:11,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 05:01:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 05:01:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-15 05:01:11,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784871369] [2020-10-15 05:01:11,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 05:01:11,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 05:01:11,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427172587] [2020-10-15 05:01:11,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 05:01:11,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 05:01:11,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 05:01:11,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-15 05:01:11,546 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 14 states. [2020-10-15 05:01:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 05:01:12,847 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2020-10-15 05:01:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 05:01:12,847 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-15 05:01:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 05:01:12,849 INFO L225 Difference]: With dead ends: 101 [2020-10-15 05:01:12,849 INFO L226 Difference]: Without dead ends: 85 [2020-10-15 05:01:12,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2020-10-15 05:01:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-15 05:01:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2020-10-15 05:01:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-15 05:01:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2020-10-15 05:01:12,866 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 67 [2020-10-15 05:01:12,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 05:01:12,867 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2020-10-15 05:01:12,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 05:01:12,867 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2020-10-15 05:01:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 05:01:12,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 05:01:12,869 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 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] [2020-10-15 05:01:12,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 05:01:12,870 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 05:01:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 05:01:12,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1640408671, now seen corresponding path program 1 times [2020-10-15 05:01:12,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 05:01:12,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261660274] [2020-10-15 05:01:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 05:01:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:12,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:13,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:13,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 05:01:17,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 05:01:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 05:01:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:17,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 05:01:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 05:01:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 05:01:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:18,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 05:01:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:18,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:18,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:18,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:18,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 05:01:18,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:18,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:18,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 05:01:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 05:01:18,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 05:01:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:18,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:19,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:19,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 05:01:19,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 05:01:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 878 [2020-10-15 05:01:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:19,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 05:01:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:19,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 05:01:19,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:19,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 05:01:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:19,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:19,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:19,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 05:01:19,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 05:01:19,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:19,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 05:01:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 05:01:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 05:01:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 05:01:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 05:01:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 05:01:19,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 05:01:19,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 05:01:19,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 05:01:19,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 05:01:19,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-15 05:01:19,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 05:01:19,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 05:01:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 05:01:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 05:01:19,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 05:01:19,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1