/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/seq-mthreaded/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:47:11,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:47:11,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:47:11,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:47:11,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:47:11,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:47:11,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:47:11,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:47:11,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:47:11,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:47:11,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:47:11,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:47:11,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:47:11,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:47:11,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:47:11,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:47:11,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:47:11,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:47:11,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:47:11,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:47:11,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:47:11,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:47:11,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:47:11,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:47:11,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:47:11,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:47:11,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:47:11,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:47:11,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:47:11,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:47:11,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:47:11,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:47:11,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:47:11,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:47:11,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:47:11,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:47:11,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:47:11,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:47:11,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:47:11,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:47:11,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:47:11,802 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 [2020-10-14 07:47:11,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:47:11,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:47:11,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:47:11,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:47:11,857 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:47:11,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:47:11,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:47:11,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:47:11,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:47:11,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:47:11,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:47:11,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:47:11,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:47:11,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:47:11,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:47:11,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:47:11,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:47:11,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:47:11,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:47:11,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:47:11,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:47:11,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:47:11,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:47:11,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:47:11,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:47:11,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:47:11,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:47:11,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:47:11,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:47:11,864 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:47:12,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:47:12,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:47:12,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:47:12,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:47:12,199 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:47:12,199 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2020-10-14 07:47:12,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a20cbf5/723979c43a1541d6a90bfe71ec750555/FLAG51233e8d3 [2020-10-14 07:47:12,853 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:47:12,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2020-10-14 07:47:12,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a20cbf5/723979c43a1541d6a90bfe71ec750555/FLAG51233e8d3 [2020-10-14 07:47:13,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7a20cbf5/723979c43a1541d6a90bfe71ec750555 [2020-10-14 07:47:13,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:47:13,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:47:13,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:47:13,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:47:13,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:47:13,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13, skipping insertion in model container [2020-10-14 07:47:13,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:47:13,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:47:13,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:47:13,644 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:47:13,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:47:13,792 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:47:13,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13 WrapperNode [2020-10-14 07:47:13,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:47:13,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:47:13,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:47:13,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:47:13,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (1/1) ... [2020-10-14 07:47:13,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:47:13,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:47:13,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:47:13,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:47:13,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (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 [2020-10-14 07:47:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 07:47:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-14 07:47:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 07:47:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 07:47:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:47:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 07:47:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:47:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 07:47:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 07:47:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 07:47:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 07:47:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 07:47:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 07:47:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 07:47:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 07:47:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:47:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:47:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:47:15,368 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:47:15,369 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 07:47:15,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:47:15 BoogieIcfgContainer [2020-10-14 07:47:15,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:47:15,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:47:15,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:47:15,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:47:15,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:47:13" (1/3) ... [2020-10-14 07:47:15,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e388827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:47:15, skipping insertion in model container [2020-10-14 07:47:15,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:47:13" (2/3) ... [2020-10-14 07:47:15,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e388827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:47:15, skipping insertion in model container [2020-10-14 07:47:15,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:47:15" (3/3) ... [2020-10-14 07:47:15,384 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2020-10-14 07:47:15,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:47:15,403 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:47:15,417 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:47:15,444 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:47:15,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:47:15,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:47:15,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:47:15,445 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:47:15,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:47:15,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:47:15,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:47:15,470 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-10-14 07:47:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 07:47:15,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:15,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:15,488 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:15,495 INFO L82 PathProgramCache]: Analyzing trace with hash 465864368, now seen corresponding path program 1 times [2020-10-14 07:47:15,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:15,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608357198] [2020-10-14 07:47:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:16,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:16,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 07:47:16,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-14 07:47:16,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:16,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 07:47:16,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:47:16,960 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:16,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:17,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 07:47:17,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 07:47:17,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 07:47:17,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 07:47:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:17,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:17,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:47:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:47:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:17,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:47:17,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:47:17,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:17,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:17,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:47:17,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:47:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:17,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:47:17,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:17,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:47:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:17,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:17,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:17,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 07:47:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:17,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:17,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:17,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:17,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608357198] [2020-10-14 07:47:17,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:17,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:47:17,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852281083] [2020-10-14 07:47:17,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:47:17,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:17,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:47:17,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:47:17,490 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 7 states. [2020-10-14 07:47:18,636 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:47:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:19,864 INFO L93 Difference]: Finished difference Result 495 states and 833 transitions. [2020-10-14 07:47:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:47:19,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-14 07:47:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:19,882 INFO L225 Difference]: With dead ends: 495 [2020-10-14 07:47:19,882 INFO L226 Difference]: Without dead ends: 357 [2020-10-14 07:47:19,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:47:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-14 07:47:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 329. [2020-10-14 07:47:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-14 07:47:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 568 transitions. [2020-10-14 07:47:19,997 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 568 transitions. Word has length 104 [2020-10-14 07:47:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:19,997 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 568 transitions. [2020-10-14 07:47:19,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:47:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 568 transitions. [2020-10-14 07:47:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 07:47:20,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:20,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:20,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:47:20,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:20,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:20,004 INFO L82 PathProgramCache]: Analyzing trace with hash 889511090, now seen corresponding path program 1 times [2020-10-14 07:47:20,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:20,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113869981] [2020-10-14 07:47:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:20,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:21,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:21,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 07:47:21,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:21,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-10-14 07:47:21,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:21,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:47:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 07:47:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:47:21,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:21,812 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:21,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:21,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:47:21,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:21,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:21,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:21,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 07:47:22,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-14 07:47:22,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:22,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 07:47:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 07:47:22,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 07:47:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:22,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:22,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 07:47:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 07:47:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:22,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:22,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:47:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:22,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:22,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:22,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:47:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:22,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 07:47:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:22,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:22,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 07:47:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:22,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:22,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:22,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:22,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:22,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:22,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:22,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:22,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:22,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113869981] [2020-10-14 07:47:22,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:22,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 07:47:22,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358149712] [2020-10-14 07:47:22,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 07:47:22,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:22,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 07:47:22,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:47:22,575 INFO L87 Difference]: Start difference. First operand 329 states and 568 transitions. Second operand 13 states. [2020-10-14 07:47:24,852 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 07:47:25,244 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 07:47:25,681 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 07:47:26,083 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:47:27,923 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:47:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:28,572 INFO L93 Difference]: Finished difference Result 498 states and 837 transitions. [2020-10-14 07:47:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 07:47:28,573 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-14 07:47:28,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:28,582 INFO L225 Difference]: With dead ends: 498 [2020-10-14 07:47:28,582 INFO L226 Difference]: Without dead ends: 367 [2020-10-14 07:47:28,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-14 07:47:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-10-14 07:47:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 329. [2020-10-14 07:47:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-14 07:47:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 526 transitions. [2020-10-14 07:47:28,662 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 526 transitions. Word has length 104 [2020-10-14 07:47:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:28,665 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 526 transitions. [2020-10-14 07:47:28,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 07:47:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 526 transitions. [2020-10-14 07:47:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-14 07:47:28,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:28,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:28,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:47:28,675 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:28,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:28,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1800756654, now seen corresponding path program 1 times [2020-10-14 07:47:28,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:28,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493915777] [2020-10-14 07:47:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:28,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:28,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:29,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:29,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:33,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:33,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 07:47:33,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:47:33,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 07:47:33,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:33,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 07:47:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 07:47:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,204 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:34,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:34,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:47:34,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:34,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:47:34,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 07:47:34,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:47:34,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:47:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:34,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:47:34,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:34,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:47:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:47:34,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:34,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:34,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:47:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:47:34,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:47:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:47:34,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:34,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:47:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:47:34,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:47:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:47:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:47:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 07:47:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:34,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:34,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:34,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:47:34,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:34,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:34,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493915777] [2020-10-14 07:47:34,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:34,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:34,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541454125] [2020-10-14 07:47:34,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:34,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:34,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:34,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:34,793 INFO L87 Difference]: Start difference. First operand 329 states and 526 transitions. Second operand 10 states. [2020-10-14 07:47:35,154 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:47:39,460 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:47:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:39,748 INFO L93 Difference]: Finished difference Result 631 states and 1008 transitions. [2020-10-14 07:47:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:47:39,749 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-14 07:47:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:39,754 INFO L225 Difference]: With dead ends: 631 [2020-10-14 07:47:39,754 INFO L226 Difference]: Without dead ends: 506 [2020-10-14 07:47:39,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:47:39,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-14 07:47:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 445. [2020-10-14 07:47:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-10-14 07:47:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 712 transitions. [2020-10-14 07:47:39,832 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 712 transitions. Word has length 145 [2020-10-14 07:47:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:39,832 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 712 transitions. [2020-10-14 07:47:39,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 712 transitions. [2020-10-14 07:47:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 07:47:39,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:39,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:39,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:47:39,836 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:39,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:39,837 INFO L82 PathProgramCache]: Analyzing trace with hash -804656093, now seen corresponding path program 1 times [2020-10-14 07:47:39,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:39,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338047884] [2020-10-14 07:47:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:39,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:44,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:44,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 07:47:44,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:47:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:47:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:45,281 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:47:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:47:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:47:45,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:47:45,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:45,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:45,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:47:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:47:45,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 07:47:45,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:47:45,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 07:47:45,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:45,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:47:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:47:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:47:45,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:45,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:45,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:47:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:45,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:47:45,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:45,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:47:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:45,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:47:45,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:45,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:45,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:47:45,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:47:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:45,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:47:45,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:47:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:47:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:47:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:47:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:47:45,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:47:45,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:47:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:47:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:47:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:45,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 07:47:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:45,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:45,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:47:45,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:47:45,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:47:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:47:45,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:47:45,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:47:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:47:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:47:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:47:45,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:47:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:47:46,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338047884] [2020-10-14 07:47:46,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:47:46,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:47:46,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143084773] [2020-10-14 07:47:46,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:47:46,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:47:46,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:47:46,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:47:46,034 INFO L87 Difference]: Start difference. First operand 445 states and 712 transitions. Second operand 10 states. [2020-10-14 07:47:46,394 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:47:46,785 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-14 07:47:47,339 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 07:47:48,036 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 246 [2020-10-14 07:47:52,328 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:47:52,647 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:47:56,201 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:47:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:47:57,347 INFO L93 Difference]: Finished difference Result 1689 states and 2704 transitions. [2020-10-14 07:47:57,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:47:57,349 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-14 07:47:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:47:57,359 INFO L225 Difference]: With dead ends: 1689 [2020-10-14 07:47:57,360 INFO L226 Difference]: Without dead ends: 1287 [2020-10-14 07:47:57,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:47:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2020-10-14 07:47:57,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1150. [2020-10-14 07:47:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1150 states. [2020-10-14 07:47:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1830 transitions. [2020-10-14 07:47:57,516 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1830 transitions. Word has length 148 [2020-10-14 07:47:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:47:57,518 INFO L479 AbstractCegarLoop]: Abstraction has 1150 states and 1830 transitions. [2020-10-14 07:47:57,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:47:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1830 transitions. [2020-10-14 07:47:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 07:47:57,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:47:57,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:47:57,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:47:57,523 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:47:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:47:57,524 INFO L82 PathProgramCache]: Analyzing trace with hash -496952257, now seen corresponding path program 1 times [2020-10-14 07:47:57,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:47:57,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103931554] [2020-10-14 07:47:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:47:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:47:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:57,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:58,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:47:58,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:02,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:02,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 07:48:02,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:48:02,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:48:02,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:02,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 07:48:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:02,961 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:02,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:02,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:02,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:02,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:48:02,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:02,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:02,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:02,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:02,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:48:03,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 07:48:03,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 07:48:03,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:48:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:03,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:48:03,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:48:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:48:03,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,547 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-14 07:48:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:48:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:03,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:03,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:03,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:03,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:03,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:48:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:03,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:48:03,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:03,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:48:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:48:03,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:48:03,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 07:48:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:48:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 07:48:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:03,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:03,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:03,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:03,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:03,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:03,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:03,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:03,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103931554] [2020-10-14 07:48:03,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:03,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:03,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041030344] [2020-10-14 07:48:03,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:03,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:03,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:03,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:03,890 INFO L87 Difference]: Start difference. First operand 1150 states and 1830 transitions. Second operand 10 states. [2020-10-14 07:48:04,415 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:04,944 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:48:05,452 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:48:06,151 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:48:10,588 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:10,843 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:11,419 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:11,552 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:11,919 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 07:48:12,670 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:13,737 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:14,503 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:15,536 INFO L93 Difference]: Finished difference Result 4728 states and 7548 transitions. [2020-10-14 07:48:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:48:15,537 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-14 07:48:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:15,557 INFO L225 Difference]: With dead ends: 4728 [2020-10-14 07:48:15,557 INFO L226 Difference]: Without dead ends: 3639 [2020-10-14 07:48:15,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:48:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2020-10-14 07:48:15,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 3264. [2020-10-14 07:48:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3264 states. [2020-10-14 07:48:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 5175 transitions. [2020-10-14 07:48:15,880 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 5175 transitions. Word has length 148 [2020-10-14 07:48:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:15,880 INFO L479 AbstractCegarLoop]: Abstraction has 3264 states and 5175 transitions. [2020-10-14 07:48:15,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 5175 transitions. [2020-10-14 07:48:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-14 07:48:15,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:15,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:15,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:48:15,894 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:15,895 INFO L82 PathProgramCache]: Analyzing trace with hash -337504886, now seen corresponding path program 1 times [2020-10-14 07:48:15,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:15,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676842679] [2020-10-14 07:48:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:16,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:20,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:20,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 07:48:20,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 07:48:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 07:48:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:21,473 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:21,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:48:21,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:21,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:21,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:48:21,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 07:48:21,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:48:21,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:48:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:21,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:48:21,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:48:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:21,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:21,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:21,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:48:21,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:21,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:21,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:48:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:21,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:22,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:22,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:22,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:22,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:48:22,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:22,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:22,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:22,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:22,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:48:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:22,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:22,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:22,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:48:22,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:22,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:22,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:48:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:22,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:22,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:22,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:48:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:48:22,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:22,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:22,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:22,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 07:48:22,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:48:22,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:22,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 07:48:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:22,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:22,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:22,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:22,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:22,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:22,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:22,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:22,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:48:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:22,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676842679] [2020-10-14 07:48:22,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:22,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:22,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541834923] [2020-10-14 07:48:22,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:22,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:22,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:22,306 INFO L87 Difference]: Start difference. First operand 3264 states and 5175 transitions. Second operand 10 states. [2020-10-14 07:48:22,663 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:23,038 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:48:23,575 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:48:24,271 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:48:28,992 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:29,288 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:29,821 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:30,107 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:30,946 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:31,236 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:32,073 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:32,357 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:33,088 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:34,434 INFO L93 Difference]: Finished difference Result 12976 states and 20598 transitions. [2020-10-14 07:48:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:48:34,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-14 07:48:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:34,479 INFO L225 Difference]: With dead ends: 12976 [2020-10-14 07:48:34,480 INFO L226 Difference]: Without dead ends: 9794 [2020-10-14 07:48:34,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:48:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9794 states. [2020-10-14 07:48:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9794 to 8886. [2020-10-14 07:48:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8886 states. [2020-10-14 07:48:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8886 states to 8886 states and 13971 transitions. [2020-10-14 07:48:35,457 INFO L78 Accepts]: Start accepts. Automaton has 8886 states and 13971 transitions. Word has length 149 [2020-10-14 07:48:35,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:35,457 INFO L479 AbstractCegarLoop]: Abstraction has 8886 states and 13971 transitions. [2020-10-14 07:48:35,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8886 states and 13971 transitions. [2020-10-14 07:48:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:48:35,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:35,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:35,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:48:35,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:35,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1445175075, now seen corresponding path program 1 times [2020-10-14 07:48:35,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:35,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840616413] [2020-10-14 07:48:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:35,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:35,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:36,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:37,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:38,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:40,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:40,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 07:48:40,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 07:48:40,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 07:48:40,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:40,948 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:48:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:48:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:40,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:40,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:40,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:48:40,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:40,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 07:48:40,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:40,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:40,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:40,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:40,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:40,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:48:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:48:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:48:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:48:41,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:48:41,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:48:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:48:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:41,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:48:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:48:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:41,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:48:41,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:48:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:48:41,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:48:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:48:41,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:48:41,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 07:48:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:48:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:48:41,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:48:41,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:48:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:48:41,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840616413] [2020-10-14 07:48:41,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:48:41,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:48:41,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393859566] [2020-10-14 07:48:41,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:48:41,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:48:41,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:48:41,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:48:41,456 INFO L87 Difference]: Start difference. First operand 8886 states and 13971 transitions. Second operand 10 states. [2020-10-14 07:48:41,848 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:48:42,291 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:48:42,718 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:48:44,018 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:48:48,603 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:48:48,904 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:49,493 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:49,769 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:50,607 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:50,898 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:51,820 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:52,143 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:48:52,619 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:48:54,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:48:54,325 INFO L93 Difference]: Finished difference Result 34279 states and 53801 transitions. [2020-10-14 07:48:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:48:54,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-14 07:48:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:48:54,429 INFO L225 Difference]: With dead ends: 34279 [2020-10-14 07:48:54,429 INFO L226 Difference]: Without dead ends: 25802 [2020-10-14 07:48:54,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:48:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25802 states. [2020-10-14 07:48:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25802 to 23537. [2020-10-14 07:48:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23537 states. [2020-10-14 07:48:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23537 states to 23537 states and 36572 transitions. [2020-10-14 07:48:56,770 INFO L78 Accepts]: Start accepts. Automaton has 23537 states and 36572 transitions. Word has length 150 [2020-10-14 07:48:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:48:56,771 INFO L479 AbstractCegarLoop]: Abstraction has 23537 states and 36572 transitions. [2020-10-14 07:48:56,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:48:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 23537 states and 36572 transitions. [2020-10-14 07:48:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-14 07:48:56,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:48:56,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:48:56,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:48:56,826 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:48:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:48:56,827 INFO L82 PathProgramCache]: Analyzing trace with hash 482280132, now seen corresponding path program 1 times [2020-10-14 07:48:56,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:48:56,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977694062] [2020-10-14 07:48:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:48:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:48:56,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:56,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:57,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:57,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:48:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:01,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:01,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 07:49:01,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:49:01,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 07:49:01,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:01,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:49:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 07:49:01,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 07:49:01,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:02,525 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:02,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:02,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:02,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:49:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:02,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:49:02,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:02,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:02,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:02,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:49:02,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 07:49:02,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:02,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:02,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:49:02,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:49:02,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:49:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:02,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:02,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:02,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:02,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:02,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:49:02,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:02,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:02,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:02,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:02,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:02,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:49:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:02,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:02,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:02,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:02,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:02,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:02,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:02,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:49:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:02,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:02,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:02,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:02,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:02,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:49:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:03,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:03,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:03,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:03,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:49:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:03,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:03,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 07:49:03,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:49:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:03,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 07:49:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:03,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:03,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:03,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:03,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:03,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:03,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:03,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:03,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:03,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977694062] [2020-10-14 07:49:03,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:03,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:49:03,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023153797] [2020-10-14 07:49:03,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:49:03,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:03,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:49:03,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:49:03,120 INFO L87 Difference]: Start difference. First operand 23537 states and 36572 transitions. Second operand 10 states. [2020-10-14 07:49:03,490 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:49:03,878 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-14 07:49:04,351 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-14 07:49:05,073 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 246 [2020-10-14 07:49:12,204 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-14 07:49:12,540 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:13,204 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:13,517 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:14,432 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:14,826 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:15,710 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:16,133 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 07:49:17,152 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:49:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:19,407 INFO L93 Difference]: Finished difference Result 92811 states and 144036 transitions. [2020-10-14 07:49:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 07:49:19,408 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-14 07:49:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:19,682 INFO L225 Difference]: With dead ends: 92811 [2020-10-14 07:49:19,682 INFO L226 Difference]: Without dead ends: 71536 [2020-10-14 07:49:19,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-14 07:49:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71536 states. [2020-10-14 07:49:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71536 to 65589. [2020-10-14 07:49:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65589 states. [2020-10-14 07:49:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65589 states to 65589 states and 101091 transitions. [2020-10-14 07:49:26,288 INFO L78 Accepts]: Start accepts. Automaton has 65589 states and 101091 transitions. Word has length 150 [2020-10-14 07:49:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:26,289 INFO L479 AbstractCegarLoop]: Abstraction has 65589 states and 101091 transitions. [2020-10-14 07:49:26,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:49:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 65589 states and 101091 transitions. [2020-10-14 07:49:26,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 07:49:26,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:26,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:26,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:49:26,404 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:26,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:26,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1949943484, now seen corresponding path program 1 times [2020-10-14 07:49:26,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:26,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916162693] [2020-10-14 07:49:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:26,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:26,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:26,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:27,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:27,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:29,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:30,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 07:49:31,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:31,815 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:31,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:31,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:31,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:31,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:31,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 07:49:31,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:49:31,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:31,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:31,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:31,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:31,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 07:49:31,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:31,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 07:49:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:31,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:31,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-14 07:49:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:31,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:31,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:31,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-14 07:49:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:31,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:31,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:31,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:32,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:32,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-14 07:49:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:32,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:32,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:32,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:32,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:32,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:49:32,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:32,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 07:49:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:32,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 07:49:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:32,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:32,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:32,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 07:49:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 07:49:32,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:32,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 07:49:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:32,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-14 07:49:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:32,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:32,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:32,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:32,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:49:32,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:32,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:32,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916162693] [2020-10-14 07:49:32,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:32,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 07:49:32,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437613289] [2020-10-14 07:49:32,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 07:49:32,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:32,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 07:49:32,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:49:32,224 INFO L87 Difference]: Start difference. First operand 65589 states and 101091 transitions. Second operand 10 states. [2020-10-14 07:49:32,604 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-14 07:49:37,649 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 07:49:41,410 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-14 07:49:41,568 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-14 07:49:41,786 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 07:49:41,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:49:41,996 INFO L93 Difference]: Finished difference Result 110839 states and 171862 transitions. [2020-10-14 07:49:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:49:41,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-14 07:49:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:49:42,263 INFO L225 Difference]: With dead ends: 110839 [2020-10-14 07:49:42,263 INFO L226 Difference]: Without dead ends: 89259 [2020-10-14 07:49:42,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-14 07:49:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89259 states. [2020-10-14 07:49:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89259 to 80395. [2020-10-14 07:49:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80395 states. [2020-10-14 07:49:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80395 states to 80395 states and 123881 transitions. [2020-10-14 07:49:49,793 INFO L78 Accepts]: Start accepts. Automaton has 80395 states and 123881 transitions. Word has length 151 [2020-10-14 07:49:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:49:49,793 INFO L479 AbstractCegarLoop]: Abstraction has 80395 states and 123881 transitions. [2020-10-14 07:49:49,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 07:49:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 80395 states and 123881 transitions. [2020-10-14 07:49:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 07:49:49,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:49:49,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:49:49,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:49:49,881 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:49:49,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:49:49,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1284567360, now seen corresponding path program 1 times [2020-10-14 07:49:49,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:49:49,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115538907] [2020-10-14 07:49:49,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:49:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:49,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:50,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:50,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:50,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:50,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:53,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:54,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:54,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5132 [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:49:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 07:49:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,376 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-14 07:49:55,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:49:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:49:55,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:55,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:49:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 07:49:55,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:49:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-14 07:49:55,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 07:49:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:55,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-14 07:49:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:49:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:49:55,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:49:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-14 07:49:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:55,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:55,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-14 07:49:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:49:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:49:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 07:49:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:49:55,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:49:55,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:49:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:49:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:49:55,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:49:55,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 07:49:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 07:49:55,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:49:55,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 07:49:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:55,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-14 07:49:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:49:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:49:55,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:49:55,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 07:49:55,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:49:55,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:49:55,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:49:55,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:49:55,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:49:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:49:55,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:49:55,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:49:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:49:56,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115538907] [2020-10-14 07:49:56,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:49:56,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:49:56,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963850912] [2020-10-14 07:49:56,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:49:56,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:49:56,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:49:56,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:49:56,057 INFO L87 Difference]: Start difference. First operand 80395 states and 123881 transitions. Second operand 9 states. [2020-10-14 07:49:56,542 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-14 07:49:57,307 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-14 07:50:09,268 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 07:50:09,503 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:50:10,584 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 07:50:10,859 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:50:11,615 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:50:11,749 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 07:50:13,060 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-14 07:50:13,292 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 07:50:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:50:17,948 INFO L93 Difference]: Finished difference Result 312053 states and 481134 transitions. [2020-10-14 07:50:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 07:50:17,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2020-10-14 07:50:17,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:50:18,613 INFO L225 Difference]: With dead ends: 312053 [2020-10-14 07:50:18,614 INFO L226 Difference]: Without dead ends: 237456 [2020-10-14 07:50:18,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-14 07:50:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237456 states. [2020-10-14 07:50:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237456 to 217511. [2020-10-14 07:50:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217511 states. [2020-10-14 07:50:36,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217511 states to 217511 states and 332223 transitions. [2020-10-14 07:50:36,714 INFO L78 Accepts]: Start accepts. Automaton has 217511 states and 332223 transitions. Word has length 155 [2020-10-14 07:50:36,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:50:36,714 INFO L479 AbstractCegarLoop]: Abstraction has 217511 states and 332223 transitions. [2020-10-14 07:50:36,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:50:36,714 INFO L276 IsEmpty]: Start isEmpty. Operand 217511 states and 332223 transitions. [2020-10-14 07:50:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 07:50:36,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:50:36,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:50:36,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:50:36,957 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:50:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:50:36,957 INFO L82 PathProgramCache]: Analyzing trace with hash -621184183, now seen corresponding path program 1 times [2020-10-14 07:50:36,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:50:36,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002626027] [2020-10-14 07:50:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:50:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:50:36,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:37,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:37,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:50:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking...