/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_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:00:16,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:00:16,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:00:16,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:00:16,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:00:16,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:00:16,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:00:16,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:00:16,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:00:16,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:00:16,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:00:16,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:00:16,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:00:16,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:00:16,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:00:16,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:00:16,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:00:16,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:00:16,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:00:16,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:00:16,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:00:16,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:00:16,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:00:16,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:00:16,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:00:16,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:00:16,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:00:16,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:00:16,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:00:16,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:00:16,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:00:16,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:00:16,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:00:16,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:00:16,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:00:16,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:00:16,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:00:16,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:00:16,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:00:16,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:00:16,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:00:16,844 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 08:00:16,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:00:16,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:00:16,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:00:16,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:00:16,892 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:00:16,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:00:16,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:00:16,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:00:16,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:00:16,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:00:16,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:00:16,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:00:16,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:00:16,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:00:16,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:00:16,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:00:16,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:00:16,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:00:16,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:00:16,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:00:16,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:00:16,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:00:16,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:00:16,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:00:16,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:00:16,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:00:16,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:00:16,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:00:16,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:00:16,901 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 08:00:17,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:00:17,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:00:17,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:00:17,238 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:00:17,238 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:00:17,239 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:17,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a76e41c/5c925de637b84ec29347dc72b90597c5/FLAG0ea108422 [2020-10-14 08:00:17,808 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:00:17,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:17,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a76e41c/5c925de637b84ec29347dc72b90597c5/FLAG0ea108422 [2020-10-14 08:00:18,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a76e41c/5c925de637b84ec29347dc72b90597c5 [2020-10-14 08:00:18,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:00:18,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:00:18,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:18,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:00:18,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:00:18,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9c66bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18, skipping insertion in model container [2020-10-14 08:00:18,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:00:18,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:00:18,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:18,464 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:00:18,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:18,611 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:00:18,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18 WrapperNode [2020-10-14 08:00:18,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:18,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:00:18,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:00:18,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:00:18,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... [2020-10-14 08:00:18,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:00:18,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:00:18,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:00:18,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:00:18,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:00:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:00:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:00:18,753 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:00:18,754 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:00:18,755 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:00:18,755 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:00:18,755 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:00:18,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:00:18,756 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:00:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:00:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:00:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:00:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:00:18,757 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:00:18,758 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:00:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:00:18,760 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:00:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:00:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:00:18,761 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:00:18,762 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:00:18,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:00:18,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:00:18,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:00:19,282 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:00:19,282 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:00:19,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:19 BoogieIcfgContainer [2020-10-14 08:00:19,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:00:19,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:00:19,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:00:19,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:00:19,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:00:18" (1/3) ... [2020-10-14 08:00:19,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc2a815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:19, skipping insertion in model container [2020-10-14 08:00:19,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:18" (2/3) ... [2020-10-14 08:00:19,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc2a815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:19, skipping insertion in model container [2020-10-14 08:00:19,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:19" (3/3) ... [2020-10-14 08:00:19,297 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:19,309 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:00:19,317 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:00:19,332 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:00:19,359 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:00:19,360 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:00:19,360 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:00:19,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:00:19,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:00:19,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:00:19,361 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:00:19,361 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:00:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-10-14 08:00:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 08:00:19,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:19,397 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] [2020-10-14 08:00:19,397 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:19,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1715633964, now seen corresponding path program 1 times [2020-10-14 08:00:19,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:19,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545542919] [2020-10-14 08:00:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 08:00:20,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-10-14 08:00:20,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:00:20,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:20,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:20,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:00:20,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:20,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:20,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 08:00:20,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 08:00:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:20,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:00:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:20,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:00:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:20,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 08:00:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:20,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:20,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:20,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,985 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 08:00:20,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545542919] [2020-10-14 08:00:20,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:20,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:00:20,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240769505] [2020-10-14 08:00:20,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:00:20,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:00:21,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:00:21,013 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 10 states. [2020-10-14 08:00:21,255 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-14 08:00:21,472 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 08:00:22,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:22,574 INFO L93 Difference]: Finished difference Result 193 states and 281 transitions. [2020-10-14 08:00:22,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:00:22,577 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-14 08:00:22,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:22,590 INFO L225 Difference]: With dead ends: 193 [2020-10-14 08:00:22,590 INFO L226 Difference]: Without dead ends: 110 [2020-10-14 08:00:22,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:00:22,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-14 08:00:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2020-10-14 08:00:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-14 08:00:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 126 transitions. [2020-10-14 08:00:22,654 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 126 transitions. Word has length 49 [2020-10-14 08:00:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:22,655 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 126 transitions. [2020-10-14 08:00:22,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:00:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 126 transitions. [2020-10-14 08:00:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:00:22,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:22,660 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] [2020-10-14 08:00:22,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:00:22,661 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:22,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1846428446, now seen corresponding path program 1 times [2020-10-14 08:00:22,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:22,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352063487] [2020-10-14 08:00:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:22,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:22,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:23,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:00:27,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:00:27,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:00:27,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:27,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 08:00:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 08:00:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:00:27,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:00:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:27,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:00:27,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:00:27,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:27,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:27,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:27,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:27,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:27,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:27,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:00:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:28,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:28,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:28,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:28,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:00:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:28,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:28,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:28,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:28,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:28,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:28,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:28,078 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 08:00:28,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352063487] [2020-10-14 08:00:28,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:28,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:28,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859521428] [2020-10-14 08:00:28,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:28,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:28,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:28,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:28,083 INFO L87 Difference]: Start difference. First operand 98 states and 126 transitions. Second operand 9 states. [2020-10-14 08:00:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:29,693 INFO L93 Difference]: Finished difference Result 225 states and 303 transitions. [2020-10-14 08:00:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:29,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-14 08:00:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:29,700 INFO L225 Difference]: With dead ends: 225 [2020-10-14 08:00:29,700 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 08:00:29,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 08:00:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2020-10-14 08:00:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-14 08:00:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2020-10-14 08:00:29,727 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 200 transitions. Word has length 65 [2020-10-14 08:00:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:29,728 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 200 transitions. [2020-10-14 08:00:29,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 200 transitions. [2020-10-14 08:00:29,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:00:29,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:29,731 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] [2020-10-14 08:00:29,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:00:29,732 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:29,733 INFO L82 PathProgramCache]: Analyzing trace with hash -790482084, now seen corresponding path program 1 times [2020-10-14 08:00:29,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:29,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965020525] [2020-10-14 08:00:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 08:00:31,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1840 [2020-10-14 08:00:31,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 08:00:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:31,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:31,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:31,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:31,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:31,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:31,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:31,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:31,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:31,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:31,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:00:31,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:00:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:31,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:31,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:31,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:00:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:31,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:31,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:31,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,927 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 08:00:31,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965020525] [2020-10-14 08:00:31,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:31,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:31,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597958710] [2020-10-14 08:00:31,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:31,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:31,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:31,931 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. Second operand 9 states. [2020-10-14 08:00:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:33,243 INFO L93 Difference]: Finished difference Result 375 states and 510 transitions. [2020-10-14 08:00:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:33,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-14 08:00:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:33,250 INFO L225 Difference]: With dead ends: 375 [2020-10-14 08:00:33,250 INFO L226 Difference]: Without dead ends: 255 [2020-10-14 08:00:33,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-14 08:00:33,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 245. [2020-10-14 08:00:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-14 08:00:33,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 328 transitions. [2020-10-14 08:00:33,297 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 328 transitions. Word has length 66 [2020-10-14 08:00:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:33,298 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 328 transitions. [2020-10-14 08:00:33,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 328 transitions. [2020-10-14 08:00:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:00:33,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:33,300 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] [2020-10-14 08:00:33,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:00:33,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:33,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1800140614, now seen corresponding path program 1 times [2020-10-14 08:00:33,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:33,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177536520] [2020-10-14 08:00:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:33,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:33,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:00:33,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:33,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-10-14 08:00:33,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:33,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:33,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:33,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:00:33,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:00:33,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:33,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:33,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:33,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:33,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:33,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:33,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:33,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:33,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:34,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:34,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:34,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:34,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:00:34,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:34,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:34,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:34,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:34,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:00:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:34,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:34,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:34,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,160 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 08:00:34,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177536520] [2020-10-14 08:00:34,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:34,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:34,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108405400] [2020-10-14 08:00:34,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:34,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:34,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:34,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:34,163 INFO L87 Difference]: Start difference. First operand 245 states and 328 transitions. Second operand 9 states. [2020-10-14 08:00:35,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:35,280 INFO L93 Difference]: Finished difference Result 649 states and 882 transitions. [2020-10-14 08:00:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:35,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:00:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:35,288 INFO L225 Difference]: With dead ends: 649 [2020-10-14 08:00:35,288 INFO L226 Difference]: Without dead ends: 435 [2020-10-14 08:00:35,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:35,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-14 08:00:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 421. [2020-10-14 08:00:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-14 08:00:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 564 transitions. [2020-10-14 08:00:35,360 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 564 transitions. Word has length 67 [2020-10-14 08:00:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:35,363 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 564 transitions. [2020-10-14 08:00:35,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 564 transitions. [2020-10-14 08:00:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:00:35,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:35,370 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] [2020-10-14 08:00:35,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:00:35,370 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:35,370 INFO L82 PathProgramCache]: Analyzing trace with hash 80056672, now seen corresponding path program 1 times [2020-10-14 08:00:35,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:35,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119374486] [2020-10-14 08:00:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:35,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:00:36,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1123 [2020-10-14 08:00:36,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:00:36,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 08:00:36,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:36,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:36,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:36,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:36,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:00:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:36,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:36,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:36,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:36,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:36,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:36,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:36,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:00:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:36,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:36,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:36,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:36,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:36,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:36,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:36,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:36,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:36,856 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 08:00:36,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119374486] [2020-10-14 08:00:36,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:36,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:36,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087376273] [2020-10-14 08:00:36,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:36,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:36,859 INFO L87 Difference]: Start difference. First operand 421 states and 564 transitions. Second operand 12 states. [2020-10-14 08:00:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:42,267 INFO L93 Difference]: Finished difference Result 2985 states and 4227 transitions. [2020-10-14 08:00:42,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 08:00:42,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-14 08:00:42,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:42,294 INFO L225 Difference]: With dead ends: 2985 [2020-10-14 08:00:42,294 INFO L226 Difference]: Without dead ends: 2595 [2020-10-14 08:00:42,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 08:00:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2020-10-14 08:00:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2558. [2020-10-14 08:00:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2558 states. [2020-10-14 08:00:42,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3343 transitions. [2020-10-14 08:00:42,593 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3343 transitions. Word has length 67 [2020-10-14 08:00:42,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:42,594 INFO L479 AbstractCegarLoop]: Abstraction has 2558 states and 3343 transitions. [2020-10-14 08:00:42,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3343 transitions. [2020-10-14 08:00:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:00:42,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:42,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:42,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:00:42,596 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:42,597 INFO L82 PathProgramCache]: Analyzing trace with hash 538517929, now seen corresponding path program 1 times [2020-10-14 08:00:42,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:42,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107429384] [2020-10-14 08:00:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:00:42,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 08:00:42,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:00:42,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:00:42,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 08:00:42,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:42,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:42,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:42,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:42,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:42,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:42,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:42,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:43,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:43,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:43,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:43,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:00:43,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:43,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:00:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:43,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:43,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:43,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:43,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:43,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:43,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:43,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:43,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:43,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:43,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:43,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:43,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:43,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:43,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:43,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:43,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:43,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:00:43,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:43,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:43,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:43,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:00:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:43,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:43,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:43,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:43,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:43,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:43,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:43,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:00:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:43,281 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 08:00:43,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107429384] [2020-10-14 08:00:43,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:43,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:00:43,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122819805] [2020-10-14 08:00:43,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:00:43,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:43,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:00:43,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:00:43,284 INFO L87 Difference]: Start difference. First operand 2558 states and 3343 transitions. Second operand 13 states. [2020-10-14 08:00:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:47,899 INFO L93 Difference]: Finished difference Result 18133 states and 24651 transitions. [2020-10-14 08:00:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 08:00:47,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 68 [2020-10-14 08:00:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:48,022 INFO L225 Difference]: With dead ends: 18133 [2020-10-14 08:00:48,022 INFO L226 Difference]: Without dead ends: 15655 [2020-10-14 08:00:48,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=596, Invalid=2056, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 08:00:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15655 states. [2020-10-14 08:00:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15655 to 14658. [2020-10-14 08:00:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14658 states. [2020-10-14 08:00:49,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14658 states to 14658 states and 19047 transitions. [2020-10-14 08:00:49,303 INFO L78 Accepts]: Start accepts. Automaton has 14658 states and 19047 transitions. Word has length 68 [2020-10-14 08:00:49,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:49,303 INFO L479 AbstractCegarLoop]: Abstraction has 14658 states and 19047 transitions. [2020-10-14 08:00:49,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:00:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 14658 states and 19047 transitions. [2020-10-14 08:00:49,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:00:49,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:49,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:49,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:00:49,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:49,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:49,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1439733861, now seen corresponding path program 1 times [2020-10-14 08:00:49,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:49,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974379925] [2020-10-14 08:00:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:00:49,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 08:00:49,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:49,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 08:00:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:49,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:49,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:49,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:49,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:49,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:49,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:49,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:49,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:49,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:49,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:49,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:49,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:49,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:49,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:00:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:49,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:49,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:49,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:49,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:49,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:00:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:49,843 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 08:00:49,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974379925] [2020-10-14 08:00:49,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:49,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:49,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321049910] [2020-10-14 08:00:49,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:49,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:49,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:49,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:49,846 INFO L87 Difference]: Start difference. First operand 14658 states and 19047 transitions. Second operand 12 states. [2020-10-14 08:00:50,907 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:00:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:52,052 INFO L93 Difference]: Finished difference Result 18373 states and 24737 transitions. [2020-10-14 08:00:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:52,052 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-14 08:00:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:52,151 INFO L225 Difference]: With dead ends: 18373 [2020-10-14 08:00:52,151 INFO L226 Difference]: Without dead ends: 18371 [2020-10-14 08:00:52,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:00:52,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18371 states. [2020-10-14 08:00:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18371 to 16386. [2020-10-14 08:00:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16386 states. [2020-10-14 08:00:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16386 states to 16386 states and 20775 transitions. [2020-10-14 08:00:53,892 INFO L78 Accepts]: Start accepts. Automaton has 16386 states and 20775 transitions. Word has length 69 [2020-10-14 08:00:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:53,893 INFO L479 AbstractCegarLoop]: Abstraction has 16386 states and 20775 transitions. [2020-10-14 08:00:53,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 16386 states and 20775 transitions. [2020-10-14 08:00:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:00:53,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:53,894 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] [2020-10-14 08:00:53,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:00:53,895 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1056011839, now seen corresponding path program 1 times [2020-10-14 08:00:53,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:53,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075948171] [2020-10-14 08:00:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:53,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:00:54,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 08:00:54,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 08:00:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:54,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:54,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:54,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:54,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:54,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:54,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:54,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:54,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:54,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:54,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:54,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:54,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:54,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:54,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:00:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:54,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:54,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:54,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:54,225 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 08:00:54,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075948171] [2020-10-14 08:00:54,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:54,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:54,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700201393] [2020-10-14 08:00:54,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:54,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:54,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:54,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:54,228 INFO L87 Difference]: Start difference. First operand 16386 states and 20775 transitions. Second operand 9 states. [2020-10-14 08:00:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:56,658 INFO L93 Difference]: Finished difference Result 45477 states and 58327 transitions. [2020-10-14 08:00:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:00:56,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-10-14 08:00:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:56,798 INFO L225 Difference]: With dead ends: 45477 [2020-10-14 08:00:56,798 INFO L226 Difference]: Without dead ends: 29171 [2020-10-14 08:00:56,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:00:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29171 states. [2020-10-14 08:00:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29171 to 28950. [2020-10-14 08:00:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28950 states. [2020-10-14 08:00:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28950 states to 28950 states and 37063 transitions. [2020-10-14 08:00:58,842 INFO L78 Accepts]: Start accepts. Automaton has 28950 states and 37063 transitions. Word has length 70 [2020-10-14 08:00:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:58,843 INFO L479 AbstractCegarLoop]: Abstraction has 28950 states and 37063 transitions. [2020-10-14 08:00:58,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28950 states and 37063 transitions. [2020-10-14 08:00:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 08:00:58,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:58,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:58,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:00:58,853 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:58,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:58,854 INFO L82 PathProgramCache]: Analyzing trace with hash -21664733, now seen corresponding path program 1 times [2020-10-14 08:00:58,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:58,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24556681] [2020-10-14 08:00:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 08:01:00,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:01:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1674 [2020-10-14 08:01:00,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:01:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:01:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 08:01:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:00,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:00,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:00,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:00,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:00,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:01:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:00,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:01:00,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:00,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:00,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:00,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:00,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:00,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:00,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:01:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:00,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:01:00,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:01:00,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:01:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:00,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:00,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:01:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:00,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:00,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:00,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:01:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:00,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:01:00,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:01:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:00,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:00,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:00,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:01:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:00,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:00,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:01:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:00,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:00,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:00,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:00,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:01:00,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:00,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:00,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24556681] [2020-10-14 08:01:00,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:00,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 08:01:00,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753364628] [2020-10-14 08:01:00,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:01:00,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:00,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:01:00,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:01:00,953 INFO L87 Difference]: Start difference. First operand 28950 states and 37063 transitions. Second operand 12 states. [2020-10-14 08:01:05,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:05,324 INFO L93 Difference]: Finished difference Result 66531 states and 85376 transitions. [2020-10-14 08:01:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:01:05,325 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-10-14 08:01:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:05,496 INFO L225 Difference]: With dead ends: 66531 [2020-10-14 08:01:05,496 INFO L226 Difference]: Without dead ends: 42317 [2020-10-14 08:01:05,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=586, Unknown=0, NotChecked=0, Total=812 [2020-10-14 08:01:05,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42317 states. [2020-10-14 08:01:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42317 to 41986. [2020-10-14 08:01:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41986 states. [2020-10-14 08:01:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41986 states to 41986 states and 53615 transitions. [2020-10-14 08:01:07,903 INFO L78 Accepts]: Start accepts. Automaton has 41986 states and 53615 transitions. Word has length 107 [2020-10-14 08:01:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:07,903 INFO L479 AbstractCegarLoop]: Abstraction has 41986 states and 53615 transitions. [2020-10-14 08:01:07,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:01:07,903 INFO L276 IsEmpty]: Start isEmpty. Operand 41986 states and 53615 transitions. [2020-10-14 08:01:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:01:07,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:07,915 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:07,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:01:07,915 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:07,916 INFO L82 PathProgramCache]: Analyzing trace with hash -711577705, now seen corresponding path program 1 times [2020-10-14 08:01:07,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:07,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681930869] [2020-10-14 08:01:07,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:07,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:09,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:12,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:12,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 08:01:12,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:01:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:01:12,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:12,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:01:12,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 08:01:12,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:13,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:13,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:13,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:13,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:13,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:13,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:13,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:13,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:13,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:13,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:01:13,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:13,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:13,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:13,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:13,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:13,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:13,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:13,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:13,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:13,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:13,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:13,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:13,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:13,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:13,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:13,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:13,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:13,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:13,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:13,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:13,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:13,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:13,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:13,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:13,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:13,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:01:13,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:14,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:01:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:01:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:01:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:14,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:01:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:14,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:14,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:01:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:14,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:14,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:14,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:14,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:01:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:14,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:14,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:01:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:14,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:14,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:01:14,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:01:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:14,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:14,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:14,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:14,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:14,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681930869] [2020-10-14 08:01:14,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:14,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:14,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601986802] [2020-10-14 08:01:14,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:14,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:14,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:14,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:14,197 INFO L87 Difference]: Start difference. First operand 41986 states and 53615 transitions. Second operand 15 states. [2020-10-14 08:01:14,394 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 08:01:14,857 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-14 08:01:15,419 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-10-14 08:01:15,590 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-14 08:01:15,769 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-14 08:01:16,258 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-14 08:01:20,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:20,045 INFO L93 Difference]: Finished difference Result 104467 states and 133685 transitions. [2020-10-14 08:01:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 08:01:20,045 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 108 [2020-10-14 08:01:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:20,286 INFO L225 Difference]: With dead ends: 104467 [2020-10-14 08:01:20,287 INFO L226 Difference]: Without dead ends: 62561 [2020-10-14 08:01:20,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 08:01:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62561 states. [2020-10-14 08:01:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62561 to 61089. [2020-10-14 08:01:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61089 states. [2020-10-14 08:01:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61089 states to 61089 states and 77563 transitions. [2020-10-14 08:01:24,961 INFO L78 Accepts]: Start accepts. Automaton has 61089 states and 77563 transitions. Word has length 108 [2020-10-14 08:01:24,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:24,961 INFO L479 AbstractCegarLoop]: Abstraction has 61089 states and 77563 transitions. [2020-10-14 08:01:24,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:01:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 61089 states and 77563 transitions. [2020-10-14 08:01:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:01:24,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:24,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:24,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:01:24,973 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:24,974 INFO L82 PathProgramCache]: Analyzing trace with hash 336137361, now seen corresponding path program 1 times [2020-10-14 08:01:24,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:24,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619483434] [2020-10-14 08:01:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:25,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 08:01:30,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:30,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:01:30,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:30,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:30,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:30,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:30,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:01:30,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:30,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:01:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:30,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:01:30,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:30,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:30,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:01:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:30,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:30,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:30,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:01:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:30,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:01:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:30,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:01:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:30,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:30,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:01:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:30,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:30,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:01:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:30,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:01:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:30,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:30,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:30,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:01:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:30,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:30,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:30,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619483434] [2020-10-14 08:01:30,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:30,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:01:30,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477982] [2020-10-14 08:01:30,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:01:30,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:30,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:01:30,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:01:30,449 INFO L87 Difference]: Start difference. First operand 61089 states and 77563 transitions. Second operand 13 states. [2020-10-14 08:01:31,231 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:01:31,549 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-14 08:01:31,831 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-14 08:01:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:45,984 INFO L93 Difference]: Finished difference Result 262977 states and 331482 transitions. [2020-10-14 08:01:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 08:01:45,984 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-14 08:01:45,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:46,596 INFO L225 Difference]: With dead ends: 262977 [2020-10-14 08:01:46,596 INFO L226 Difference]: Without dead ends: 201966 [2020-10-14 08:01:46,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1663 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=761, Invalid=4069, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 08:01:46,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201966 states. [2020-10-14 08:01:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201966 to 186006. [2020-10-14 08:01:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186006 states. [2020-10-14 08:01:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186006 states to 186006 states and 231750 transitions. [2020-10-14 08:01:59,559 INFO L78 Accepts]: Start accepts. Automaton has 186006 states and 231750 transitions. Word has length 108 [2020-10-14 08:01:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:59,559 INFO L479 AbstractCegarLoop]: Abstraction has 186006 states and 231750 transitions. [2020-10-14 08:01:59,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:01:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 186006 states and 231750 transitions. [2020-10-14 08:01:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:01:59,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:59,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:59,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:01:59,578 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:59,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2022317199, now seen corresponding path program 1 times [2020-10-14 08:01:59,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:59,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145767445] [2020-10-14 08:01:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:59,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:00,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:02:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:02:04,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 08:02:04,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:04,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:04,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:04,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:04,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:04,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:04,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:04,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:04,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:04,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:04,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:04,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:02:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:04,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:02:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:04,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:04,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:04,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:04,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:04,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:02:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:04,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:04,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,078 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-10-14 08:02:05,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:02:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:05,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:05,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:05,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:02:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:05,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:02:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:05,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:02:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:02:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:05,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:02:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:02:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:05,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:05,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:05,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:05,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:05,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:02:05,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145767445] [2020-10-14 08:02:05,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:05,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:02:05,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601423393] [2020-10-14 08:02:05,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:02:05,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:05,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:02:05,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:02:05,266 INFO L87 Difference]: Start difference. First operand 186006 states and 231750 transitions. Second operand 15 states. [2020-10-14 08:02:05,977 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2020-10-14 08:02:07,409 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2020-10-14 08:02:09,629 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 08:02:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:21,230 INFO L93 Difference]: Finished difference Result 322937 states and 401075 transitions. [2020-10-14 08:02:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 08:02:21,230 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 108 [2020-10-14 08:02:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:22,105 INFO L225 Difference]: With dead ends: 322937 [2020-10-14 08:02:22,105 INFO L226 Difference]: Without dead ends: 229424 [2020-10-14 08:02:22,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:02:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229424 states. [2020-10-14 08:02:39,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229424 to 219792. [2020-10-14 08:02:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219792 states. [2020-10-14 08:02:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219792 states to 219792 states and 273008 transitions. [2020-10-14 08:02:39,647 INFO L78 Accepts]: Start accepts. Automaton has 219792 states and 273008 transitions. Word has length 108 [2020-10-14 08:02:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:39,648 INFO L479 AbstractCegarLoop]: Abstraction has 219792 states and 273008 transitions. [2020-10-14 08:02:39,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:02:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 219792 states and 273008 transitions. [2020-10-14 08:02:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:02:39,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:39,673 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:39,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:02:39,674 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:39,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1044898296, now seen corresponding path program 1 times [2020-10-14 08:02:39,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:39,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705450819] [2020-10-14 08:02:39,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:39,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:39,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:39,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:40,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:40,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:40,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:41,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:44,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:44,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:02:44,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 08:02:44,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:02:44,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:44,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:02:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:02:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:02:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:44,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:44,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:44,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:44,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:44,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:44,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:02:44,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:44,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:44,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:02:44,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:44,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:44,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:44,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:44,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:02:44,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:44,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:44,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:44,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:02:44,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:02:44,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:02:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:44,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:44,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:44,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:44,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:44,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:02:44,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:02:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:44,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:44,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:44,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:02:44,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:44,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:02:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:45,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:02:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:45,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:45,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:02:45,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:02:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:45,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:02:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:45,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:02:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:02:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:02:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:02:45,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:02:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:02:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:45,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:45,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:45,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:45,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:45,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:45,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 08:02:45,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705450819] [2020-10-14 08:02:45,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:45,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:02:45,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107809053] [2020-10-14 08:02:45,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:02:45,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:45,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:02:45,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:02:45,060 INFO L87 Difference]: Start difference. First operand 219792 states and 273008 transitions. Second operand 13 states. [2020-10-14 08:02:45,259 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-14 08:02:45,717 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-14 08:03:01,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:03:01,524 INFO L93 Difference]: Finished difference Result 373357 states and 466499 transitions. [2020-10-14 08:03:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 08:03:01,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-14 08:03:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:03:02,229 INFO L225 Difference]: With dead ends: 373357 [2020-10-14 08:03:02,230 INFO L226 Difference]: Without dead ends: 206612 [2020-10-14 08:03:02,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=439, Invalid=1283, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 08:03:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206612 states. [2020-10-14 08:03:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206612 to 198515. [2020-10-14 08:03:19,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198515 states. [2020-10-14 08:03:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198515 states to 198515 states and 246350 transitions. [2020-10-14 08:03:19,780 INFO L78 Accepts]: Start accepts. Automaton has 198515 states and 246350 transitions. Word has length 109 [2020-10-14 08:03:19,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:03:19,781 INFO L479 AbstractCegarLoop]: Abstraction has 198515 states and 246350 transitions. [2020-10-14 08:03:19,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:03:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand 198515 states and 246350 transitions. [2020-10-14 08:03:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:03:19,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:03:19,788 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:19,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:03:19,788 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:03:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:03:19,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1118451377, now seen corresponding path program 1 times [2020-10-14 08:03:19,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:03:19,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076923624] [2020-10-14 08:03:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:03:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:19,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:19,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:19,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:03:24,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:03:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 08:03:24,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:03:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:03:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:24,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:24,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:03:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:24,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:03:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:03:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:03:24,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:03:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:24,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:24,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:03:24,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:03:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:03:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:03:24,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:03:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:03:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:03:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:03:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:03:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:03:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:03:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:03:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:03:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:03:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:03:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:25,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:03:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:03:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:03:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:03:25,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:03:25,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:03:25,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:03:25,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:03:25,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:03:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:03:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:03:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:03:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:03:25,056 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:03:25,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076923624] [2020-10-14 08:03:25,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:03:25,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 08:03:25,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993514395] [2020-10-14 08:03:25,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:03:25,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:03:25,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:03:25,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:03:25,058 INFO L87 Difference]: Start difference. First operand 198515 states and 246350 transitions. Second operand 9 states.