/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:17:49,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:17:49,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:17:49,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:17:49,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:17:49,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:17:49,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:17:49,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:17:49,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:17:49,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:17:49,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:17:49,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:17:49,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:17:49,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:17:49,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:17:49,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:17:49,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:17:49,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:17:49,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:17:49,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:17:49,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:17:49,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:17:49,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:17:49,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:17:49,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:17:49,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:17:49,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:17:49,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:17:49,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:17:49,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:17:49,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:17:49,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:17:49,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:17:49,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:17:49,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:17:49,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:17:49,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:17:49,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:17:49,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:17:49,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:17:49,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:17:49,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:17:49,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:17:49,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:17:49,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:17:49,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:17:49,914 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:17:49,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:17:49,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:17:49,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:17:49,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:17:49,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:17:49,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:17:49,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:17:49,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:17:49,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:17:49,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:17:49,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:17:49,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:17:49,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:17:49,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:17:49,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:17:49,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:17:49,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:17:49,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:17:49,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:17:49,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:17:49,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:17:49,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:17:49,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:17:49,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:17:49,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:17:50,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:17:50,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:17:50,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:17:50,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:17:50,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:17:50,267 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:17:50,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c65a8120b/24f04786d8414d6fa68c832bcfc18b13/FLAGa6d98f6e4 [2020-10-15 02:17:50,775 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:17:50,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:17:50,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c65a8120b/24f04786d8414d6fa68c832bcfc18b13/FLAGa6d98f6e4 [2020-10-15 02:17:51,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c65a8120b/24f04786d8414d6fa68c832bcfc18b13 [2020-10-15 02:17:51,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:17:51,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:17:51,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:17:51,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:17:51,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:17:51,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecad7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51, skipping insertion in model container [2020-10-15 02:17:51,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:17:51,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:17:51,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:17:51,443 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:17:51,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:17:51,630 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:17:51,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51 WrapperNode [2020-10-15 02:17:51,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:17:51,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:17:51,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:17:51,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:17:51,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... [2020-10-15 02:17:51,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:17:51,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:17:51,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:17:51,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:17:51,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:17:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:17:51,757 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:17:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:17:52,441 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:17:52,442 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:17:52,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:17:52 BoogieIcfgContainer [2020-10-15 02:17:52,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:17:52,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:17:52,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:17:52,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:17:52,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:17:51" (1/3) ... [2020-10-15 02:17:52,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae87d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:17:52, skipping insertion in model container [2020-10-15 02:17:52,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:17:51" (2/3) ... [2020-10-15 02:17:52,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae87d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:17:52, skipping insertion in model container [2020-10-15 02:17:52,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:17:52" (3/3) ... [2020-10-15 02:17:52,457 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:17:52,469 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:17:52,477 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:17:52,493 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:17:52,520 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:17:52,520 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:17:52,520 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:17:52,520 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:17:52,521 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:17:52,521 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:17:52,521 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:17:52,521 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:17:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-10-15 02:17:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:17:52,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:17:52,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:17:52,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:17:52,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:17:52,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1236741439, now seen corresponding path program 1 times [2020-10-15 02:17:52,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:17:52,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361257657] [2020-10-15 02:17:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:17:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:17:53,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-15 02:17:53,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:17:53,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:17:53,519 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:17:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:17:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:17:53,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:17:53,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:17:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:17:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:17:53,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:17:53,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:17:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:17:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:53,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:17:53,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:53,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:17:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:53,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:17:53,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:53,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:17:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:53,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:17:53,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:53,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:17:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:53,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:53,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:53,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:53,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:17:53,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:53,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:17:53,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361257657] [2020-10-15 02:17:53,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:17:53,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:17:53,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140295613] [2020-10-15 02:17:53,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:17:53,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:17:53,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:17:53,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:17:53,829 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-10-15 02:17:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:17:54,828 INFO L93 Difference]: Finished difference Result 252 states and 399 transitions. [2020-10-15 02:17:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:17:54,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-15 02:17:54,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:17:54,843 INFO L225 Difference]: With dead ends: 252 [2020-10-15 02:17:54,844 INFO L226 Difference]: Without dead ends: 156 [2020-10-15 02:17:54,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:17:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-15 02:17:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 144. [2020-10-15 02:17:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 02:17:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 231 transitions. [2020-10-15 02:17:54,909 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 231 transitions. Word has length 58 [2020-10-15 02:17:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:17:54,909 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 231 transitions. [2020-10-15 02:17:54,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:17:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 231 transitions. [2020-10-15 02:17:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:17:54,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:17:54,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:17:54,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:17:54,914 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:17:54,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:17:54,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1309127997, now seen corresponding path program 1 times [2020-10-15 02:17:54,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:17:54,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231939416] [2020-10-15 02:17:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:17:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:54,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:17:55,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-15 02:17:55,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:17:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:17:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:17:55,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,732 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:17:55,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:17:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:17:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:17:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:17:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:17:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:17:55,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:17:55,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:17:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:17:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:17:55,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:17:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:55,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:17:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:17:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:55,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:17:55,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:55,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:17:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:17:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:17:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:55,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:55,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:17:55,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:17:55,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:17:55,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:17:55,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:17:55,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:17:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:17:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:17:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:17:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:17:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:17:55,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231939416] [2020-10-15 02:17:55,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:17:55,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:17:55,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226735226] [2020-10-15 02:17:55,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:17:55,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:17:55,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:17:55,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:17:55,985 INFO L87 Difference]: Start difference. First operand 144 states and 231 transitions. Second operand 10 states. [2020-10-15 02:17:56,411 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:17:56,575 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:17:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:17:57,762 INFO L93 Difference]: Finished difference Result 256 states and 402 transitions. [2020-10-15 02:17:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:17:57,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-15 02:17:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:17:57,768 INFO L225 Difference]: With dead ends: 256 [2020-10-15 02:17:57,768 INFO L226 Difference]: Without dead ends: 165 [2020-10-15 02:17:57,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:17:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-15 02:17:57,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 144. [2020-10-15 02:17:57,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-15 02:17:57,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2020-10-15 02:17:57,793 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 58 [2020-10-15 02:17:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:17:57,793 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-10-15 02:17:57,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:17:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2020-10-15 02:17:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 02:17:57,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:17:57,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:17:57,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:17:57,796 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:17:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:17:57,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1560697247, now seen corresponding path program 1 times [2020-10-15 02:17:57,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:17:57,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44695446] [2020-10-15 02:17:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:17:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:17:57,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:57,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:57,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:17:58,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:02,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:02,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 02:18:02,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:18:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-15 02:18:02,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:02,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:02,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:18:02,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:18:02,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 02:18:02,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,021 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:03,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:03,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:18:03,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:03,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:03,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:18:03,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:18:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:03,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:18:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:03,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:18:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:03,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:18:03,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:18:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:18:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:18:03,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-15 02:18:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:03,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:03,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:03,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:03,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:18:03,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:03,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:03,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:03,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44695446] [2020-10-15 02:18:03,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:03,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:18:03,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982769803] [2020-10-15 02:18:03,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:18:03,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:03,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:18:03,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:18:03,314 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand 9 states. [2020-10-15 02:18:03,543 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:18:05,257 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:18:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:05,414 INFO L93 Difference]: Finished difference Result 336 states and 506 transitions. [2020-10-15 02:18:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:18:05,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-15 02:18:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:05,420 INFO L225 Difference]: With dead ends: 336 [2020-10-15 02:18:05,420 INFO L226 Difference]: Without dead ends: 251 [2020-10-15 02:18:05,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:18:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-15 02:18:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 222. [2020-10-15 02:18:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-15 02:18:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2020-10-15 02:18:05,451 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 78 [2020-10-15 02:18:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:05,452 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2020-10-15 02:18:05,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:18:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2020-10-15 02:18:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:18:05,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:05,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:05,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:18:05,456 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:05,457 INFO L82 PathProgramCache]: Analyzing trace with hash -870758492, now seen corresponding path program 1 times [2020-10-15 02:18:05,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:05,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195456081] [2020-10-15 02:18:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:05,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:05,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:05,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 02:18:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:18:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:18:10,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:18:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:18:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:10,691 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:18:10,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:10,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:10,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:10,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:10,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:18:10,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:18:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:10,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:18:10,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:10,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:10,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:10,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:10,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:18:10,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:10,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:18:10,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:18:10,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:18:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:18:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:10,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:18:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:10,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:10,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:10,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:10,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:10,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:18:10,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:10,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:10,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:10,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:10,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195456081] [2020-10-15 02:18:10,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:10,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:18:10,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276323931] [2020-10-15 02:18:10,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:18:10,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:10,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:18:10,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:18:10,993 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand 9 states. [2020-10-15 02:18:11,173 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:11,377 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:18:11,615 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:18:11,772 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:12,346 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:14,047 INFO L93 Difference]: Finished difference Result 674 states and 1014 transitions. [2020-10-15 02:18:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:18:14,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-15 02:18:14,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:14,053 INFO L225 Difference]: With dead ends: 674 [2020-10-15 02:18:14,053 INFO L226 Difference]: Without dead ends: 470 [2020-10-15 02:18:14,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:18:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-15 02:18:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 424. [2020-10-15 02:18:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-10-15 02:18:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 624 transitions. [2020-10-15 02:18:14,133 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 624 transitions. Word has length 80 [2020-10-15 02:18:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:14,133 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 624 transitions. [2020-10-15 02:18:14,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:18:14,133 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 624 transitions. [2020-10-15 02:18:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-15 02:18:14,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:14,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:14,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:18:14,141 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:14,142 INFO L82 PathProgramCache]: Analyzing trace with hash 780513966, now seen corresponding path program 1 times [2020-10-15 02:18:14,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:14,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631586727] [2020-10-15 02:18:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:14,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:14,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:15,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 02:18:19,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:18:19,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:18:19,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:18:19,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:18:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,353 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:19,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:19,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:18:19,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:19,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:19,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:19,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:19,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:18:19,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:19,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:19,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:18:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:19,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:19,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:19,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:19,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:19,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:19,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:19,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:18:19,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:18:19,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:18:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:18:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:18:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:19,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:19,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:18:19,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:19,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:19,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631586727] [2020-10-15 02:18:19,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:19,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:18:19,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384997604] [2020-10-15 02:18:19,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:18:19,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:19,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:18:19,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:18:19,628 INFO L87 Difference]: Start difference. First operand 424 states and 624 transitions. Second operand 9 states. [2020-10-15 02:18:19,820 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:20,019 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:18:20,270 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:18:20,608 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:18:21,503 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:23,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:23,902 INFO L93 Difference]: Finished difference Result 1649 states and 2449 transitions. [2020-10-15 02:18:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:18:23,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-15 02:18:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:23,913 INFO L225 Difference]: With dead ends: 1649 [2020-10-15 02:18:23,913 INFO L226 Difference]: Without dead ends: 1264 [2020-10-15 02:18:23,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:18:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-15 02:18:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1150. [2020-10-15 02:18:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1150 states. [2020-10-15 02:18:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1688 transitions. [2020-10-15 02:18:24,030 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1688 transitions. Word has length 80 [2020-10-15 02:18:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:24,030 INFO L479 AbstractCegarLoop]: Abstraction has 1150 states and 1688 transitions. [2020-10-15 02:18:24,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:18:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1688 transitions. [2020-10-15 02:18:24,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:18:24,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:24,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:24,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:18:24,035 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:24,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:24,036 INFO L82 PathProgramCache]: Analyzing trace with hash -679406913, now seen corresponding path program 1 times [2020-10-15 02:18:24,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:24,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635918649] [2020-10-15 02:18:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:24,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:24,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:24,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:18:29,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:18:29,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,239 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:29,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:29,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:18:29,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:29,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:18:29,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:18:29,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:18:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:29,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:29,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:29,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:18:29,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:29,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:29,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635918649] [2020-10-15 02:18:29,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:29,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:18:29,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728959721] [2020-10-15 02:18:29,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:18:29,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:29,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:18:29,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:18:29,510 INFO L87 Difference]: Start difference. First operand 1150 states and 1688 transitions. Second operand 9 states. [2020-10-15 02:18:29,693 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:29,894 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:18:30,107 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:18:30,632 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:18:31,257 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:33,680 INFO L93 Difference]: Finished difference Result 3735 states and 5576 transitions. [2020-10-15 02:18:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:18:33,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 02:18:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:33,701 INFO L225 Difference]: With dead ends: 3735 [2020-10-15 02:18:33,701 INFO L226 Difference]: Without dead ends: 2785 [2020-10-15 02:18:33,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:18:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2020-10-15 02:18:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2550. [2020-10-15 02:18:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2550 states. [2020-10-15 02:18:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3757 transitions. [2020-10-15 02:18:33,904 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3757 transitions. Word has length 81 [2020-10-15 02:18:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:33,904 INFO L479 AbstractCegarLoop]: Abstraction has 2550 states and 3757 transitions. [2020-10-15 02:18:33,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:18:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3757 transitions. [2020-10-15 02:18:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 02:18:33,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:33,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:33,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:18:33,916 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1999129630, now seen corresponding path program 1 times [2020-10-15 02:18:33,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:33,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287282608] [2020-10-15 02:18:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:33,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:33,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:34,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:37,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:37,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-15 02:18:37,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4021 [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:18:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:18:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:38,239 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:38,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:38,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:38,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:18:38,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:38,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 02:18:38,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:18:38,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:18:38,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:18:38,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:18:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:18:38,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:18:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:38,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:18:38,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:38,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:38,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:38,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:18:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:38,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:18:38,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:38,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:38,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:38,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:18:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:18:38,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:38,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:18:38,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:18:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:18:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:18:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:38,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:38,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:38,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:38,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:18:38,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:38,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:38,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:38,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:38,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287282608] [2020-10-15 02:18:38,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:38,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:18:38,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986356015] [2020-10-15 02:18:38,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:18:38,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:18:38,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:18:38,606 INFO L87 Difference]: Start difference. First operand 2550 states and 3757 transitions. Second operand 9 states. [2020-10-15 02:18:38,793 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:39,008 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:18:39,443 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:18:39,640 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:18:40,331 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:42,977 INFO L93 Difference]: Finished difference Result 9047 states and 13503 transitions. [2020-10-15 02:18:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:18:42,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-10-15 02:18:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:43,023 INFO L225 Difference]: With dead ends: 9047 [2020-10-15 02:18:43,024 INFO L226 Difference]: Without dead ends: 6886 [2020-10-15 02:18:43,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:18:43,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2020-10-15 02:18:43,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 6395. [2020-10-15 02:18:43,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6395 states. [2020-10-15 02:18:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 9407 transitions. [2020-10-15 02:18:43,471 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 9407 transitions. Word has length 81 [2020-10-15 02:18:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:43,473 INFO L479 AbstractCegarLoop]: Abstraction has 6395 states and 9407 transitions. [2020-10-15 02:18:43,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:18:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 9407 transitions. [2020-10-15 02:18:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 02:18:43,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:43,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:43,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:18:43,492 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:43,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1746930978, now seen corresponding path program 1 times [2020-10-15 02:18:43,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:43,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465810799] [2020-10-15 02:18:43,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:43,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:43,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:44,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:18:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:18:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:18:48,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:18:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:18:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:18:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:48,720 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:48,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:48,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:48,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:18:48,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:18:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:48,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:48,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:48,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:18:48,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:18:48,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:48,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:18:48,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:48,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:48,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:48,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:48,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:48,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:18:48,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:48,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:18:48,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:18:48,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:48,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:18:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:18:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:18:48,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:49,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:18:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:49,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:49,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:49,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:49,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:49,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:18:49,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:49,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:49,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465810799] [2020-10-15 02:18:49,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:49,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:18:49,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442707018] [2020-10-15 02:18:49,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:18:49,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:49,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:18:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:18:49,074 INFO L87 Difference]: Start difference. First operand 6395 states and 9407 transitions. Second operand 14 states. [2020-10-15 02:18:49,305 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:49,482 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:49,890 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:18:50,183 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:18:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:18:52,257 INFO L93 Difference]: Finished difference Result 9690 states and 14115 transitions. [2020-10-15 02:18:52,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:18:52,262 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-15 02:18:52,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:18:52,303 INFO L225 Difference]: With dead ends: 9690 [2020-10-15 02:18:52,303 INFO L226 Difference]: Without dead ends: 8303 [2020-10-15 02:18:52,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:18:52,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8303 states. [2020-10-15 02:18:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8303 to 7493. [2020-10-15 02:18:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7493 states. [2020-10-15 02:18:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7493 states to 7493 states and 10960 transitions. [2020-10-15 02:18:52,867 INFO L78 Accepts]: Start accepts. Automaton has 7493 states and 10960 transitions. Word has length 82 [2020-10-15 02:18:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:18:52,868 INFO L479 AbstractCegarLoop]: Abstraction has 7493 states and 10960 transitions. [2020-10-15 02:18:52,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:18:52,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7493 states and 10960 transitions. [2020-10-15 02:18:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 02:18:52,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:18:52,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:18:52,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:18:52,882 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:18:52,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:18:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash 859092576, now seen corresponding path program 1 times [2020-10-15 02:18:52,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:18:52,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549401781] [2020-10-15 02:18:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:18:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:52,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:52,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:53,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:53,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:57,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:18:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:18:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 02:18:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,089 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:18:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:18:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:18:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:18:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:18:58,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:18:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:18:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-15 02:18:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:18:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:58,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:58,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:18:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:58,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:18:58,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:18:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:18:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:18:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:18:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:18:58,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:18:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:18:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:18:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:18:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:18:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:18:58,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549401781] [2020-10-15 02:18:58,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:18:58,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:18:58,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346991669] [2020-10-15 02:18:58,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:18:58,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:18:58,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:18:58,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:18:58,367 INFO L87 Difference]: Start difference. First operand 7493 states and 10960 transitions. Second operand 14 states. [2020-10-15 02:18:58,571 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:18:58,745 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:18:59,222 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:18:59,513 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:19:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:01,358 INFO L93 Difference]: Finished difference Result 9749 states and 14173 transitions. [2020-10-15 02:19:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:19:01,364 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-15 02:19:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:01,403 INFO L225 Difference]: With dead ends: 9749 [2020-10-15 02:19:01,403 INFO L226 Difference]: Without dead ends: 8274 [2020-10-15 02:19:01,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:19:01,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8274 states. [2020-10-15 02:19:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8274 to 7430. [2020-10-15 02:19:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7430 states. [2020-10-15 02:19:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10826 transitions. [2020-10-15 02:19:01,925 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10826 transitions. Word has length 82 [2020-10-15 02:19:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:01,926 INFO L479 AbstractCegarLoop]: Abstraction has 7430 states and 10826 transitions. [2020-10-15 02:19:01,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:19:01,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10826 transitions. [2020-10-15 02:19:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-15 02:19:01,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:01,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:01,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:19:01,939 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:01,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:01,940 INFO L82 PathProgramCache]: Analyzing trace with hash -729255326, now seen corresponding path program 1 times [2020-10-15 02:19:01,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:01,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727464500] [2020-10-15 02:19:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:01,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:02,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:02,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3134 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:19:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 02:19:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 02:19:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,275 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:19:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:19:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:05,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:19:05,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:19:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:19:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:19:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:19:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:05,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:19:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:19:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:05,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727464500] [2020-10-15 02:19:05,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:05,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:19:05,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135966233] [2020-10-15 02:19:05,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:19:05,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:05,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:19:05,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:19:05,565 INFO L87 Difference]: Start difference. First operand 7430 states and 10826 transitions. Second operand 13 states. [2020-10-15 02:19:05,754 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:06,289 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:06,440 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:08,324 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:08,609 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:19:08,768 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:12,199 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-15 02:19:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:13,524 INFO L93 Difference]: Finished difference Result 36734 states and 55431 transitions. [2020-10-15 02:19:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-15 02:19:13,525 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 82 [2020-10-15 02:19:13,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:13,692 INFO L225 Difference]: With dead ends: 36734 [2020-10-15 02:19:13,692 INFO L226 Difference]: Without dead ends: 32352 [2020-10-15 02:19:13,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=707, Invalid=2373, Unknown=0, NotChecked=0, Total=3080 [2020-10-15 02:19:13,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32352 states. [2020-10-15 02:19:16,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32352 to 28018. [2020-10-15 02:19:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28018 states. [2020-10-15 02:19:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28018 states to 28018 states and 41130 transitions. [2020-10-15 02:19:16,159 INFO L78 Accepts]: Start accepts. Automaton has 28018 states and 41130 transitions. Word has length 82 [2020-10-15 02:19:16,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:16,159 INFO L479 AbstractCegarLoop]: Abstraction has 28018 states and 41130 transitions. [2020-10-15 02:19:16,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:19:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 28018 states and 41130 transitions. [2020-10-15 02:19:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 02:19:16,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:16,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:16,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:19:16,184 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:16,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:16,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1873135975, now seen corresponding path program 1 times [2020-10-15 02:19:16,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:16,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729753409] [2020-10-15 02:19:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:16,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:16,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:16,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:19:21,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:19:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:19:21,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:19:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:19:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:19:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:21,378 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:19:21,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:19:21,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:19:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:19:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:21,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:21,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:21,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:21,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:21,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:19:21,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:19:21,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:19:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:19:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:19:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:21,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:21,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:21,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:21,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:21,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729753409] [2020-10-15 02:19:21,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:21,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:19:21,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408168677] [2020-10-15 02:19:21,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:19:21,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:21,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:19:21,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:21,576 INFO L87 Difference]: Start difference. First operand 28018 states and 41130 transitions. Second operand 9 states. [2020-10-15 02:19:21,745 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:22,724 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-15 02:19:24,292 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:19:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:24,668 INFO L93 Difference]: Finished difference Result 46400 states and 67500 transitions. [2020-10-15 02:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:19:24,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-15 02:19:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:24,797 INFO L225 Difference]: With dead ends: 46400 [2020-10-15 02:19:24,798 INFO L226 Difference]: Without dead ends: 30918 [2020-10-15 02:19:24,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:19:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30918 states. [2020-10-15 02:19:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30918 to 28286. [2020-10-15 02:19:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28286 states. [2020-10-15 02:19:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28286 states to 28286 states and 41034 transitions. [2020-10-15 02:19:26,677 INFO L78 Accepts]: Start accepts. Automaton has 28286 states and 41034 transitions. Word has length 83 [2020-10-15 02:19:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:26,678 INFO L479 AbstractCegarLoop]: Abstraction has 28286 states and 41034 transitions. [2020-10-15 02:19:26,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:19:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 28286 states and 41034 transitions. [2020-10-15 02:19:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 02:19:26,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:26,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:26,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:19:26,707 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:26,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1826870173, now seen corresponding path program 1 times [2020-10-15 02:19:26,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:26,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15621105] [2020-10-15 02:19:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:26,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:27,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:31,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:19:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 02:19:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:19:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:31,893 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:31,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:31,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:31,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:31,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:31,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:31,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:31,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:31,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:31,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:31,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:19:31,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 02:19:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:31,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:19:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:31,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:31,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:31,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:31,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:31,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:31,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:19:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:32,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:32,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:32,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:32,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:19:32,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:32,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:19:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:32,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:19:32,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:32,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:32,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:19:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:19:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:32,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15621105] [2020-10-15 02:19:32,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:32,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:19:32,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362042245] [2020-10-15 02:19:32,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:19:32,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:32,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:19:32,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:19:32,117 INFO L87 Difference]: Start difference. First operand 28286 states and 41034 transitions. Second operand 10 states. [2020-10-15 02:19:32,297 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:32,683 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:33,506 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:33,813 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 149 [2020-10-15 02:19:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:38,105 INFO L93 Difference]: Finished difference Result 70450 states and 101843 transitions. [2020-10-15 02:19:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:19:38,106 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-10-15 02:19:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:38,313 INFO L225 Difference]: With dead ends: 70450 [2020-10-15 02:19:38,313 INFO L226 Difference]: Without dead ends: 46672 [2020-10-15 02:19:38,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:19:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46672 states. [2020-10-15 02:19:41,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46672 to 42986. [2020-10-15 02:19:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42986 states. [2020-10-15 02:19:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42986 states to 42986 states and 62164 transitions. [2020-10-15 02:19:42,028 INFO L78 Accepts]: Start accepts. Automaton has 42986 states and 62164 transitions. Word has length 83 [2020-10-15 02:19:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:42,028 INFO L479 AbstractCegarLoop]: Abstraction has 42986 states and 62164 transitions. [2020-10-15 02:19:42,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:19:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 42986 states and 62164 transitions. [2020-10-15 02:19:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:19:42,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:42,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:42,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:19:42,049 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:42,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1544876999, now seen corresponding path program 1 times [2020-10-15 02:19:42,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:42,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772796189] [2020-10-15 02:19:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:19:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,313 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:47,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:47,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:19:47,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:19:47,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-15 02:19:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:19:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:47,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:47,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:19:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:19:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:19:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:19:47,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:19:47,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:47,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772796189] [2020-10-15 02:19:47,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:47,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:19:47,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559450709] [2020-10-15 02:19:47,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:19:47,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:47,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:19:47,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:19:47,510 INFO L87 Difference]: Start difference. First operand 42986 states and 62164 transitions. Second operand 10 states. [2020-10-15 02:19:47,689 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:48,081 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:49,945 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:50,196 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:19:57,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:57,138 INFO L93 Difference]: Finished difference Result 151162 states and 216407 transitions. [2020-10-15 02:19:57,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:19:57,139 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2020-10-15 02:19:57,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:57,543 INFO L225 Difference]: With dead ends: 151162 [2020-10-15 02:19:57,544 INFO L226 Difference]: Without dead ends: 113980 [2020-10-15 02:19:57,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:19:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113980 states. [2020-10-15 02:20:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113980 to 104794. [2020-10-15 02:20:04,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104794 states. [2020-10-15 02:20:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104794 states to 104794 states and 149830 transitions. [2020-10-15 02:20:04,624 INFO L78 Accepts]: Start accepts. Automaton has 104794 states and 149830 transitions. Word has length 84 [2020-10-15 02:20:04,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:04,624 INFO L479 AbstractCegarLoop]: Abstraction has 104794 states and 149830 transitions. [2020-10-15 02:20:04,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 104794 states and 149830 transitions. [2020-10-15 02:20:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:20:04,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:04,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:04,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:20:04,649 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:04,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1444708134, now seen corresponding path program 1 times [2020-10-15 02:20:04,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:04,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973712737] [2020-10-15 02:20:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:04,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:04,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:04,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:05,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:05,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:10,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:10,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:20:10,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:10,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6330 [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:20:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,158 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:11,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 02:20:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 02:20:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:11,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:11,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:20:11,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:20:11,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:11,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:11,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:20:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:20:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:20:11,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:11,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:11,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:20:11,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:20:11,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:11,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973712737] [2020-10-15 02:20:11,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:11,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:20:11,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117046175] [2020-10-15 02:20:11,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:20:11,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:11,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:20:11,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:20:11,384 INFO L87 Difference]: Start difference. First operand 104794 states and 149830 transitions. Second operand 10 states. [2020-10-15 02:20:11,551 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:11,969 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:15,810 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:16,077 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:26,413 INFO L93 Difference]: Finished difference Result 387638 states and 552031 transitions. [2020-10-15 02:20:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:20:26,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-15 02:20:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:27,303 INFO L225 Difference]: With dead ends: 387638 [2020-10-15 02:20:27,303 INFO L226 Difference]: Without dead ends: 290352 [2020-10-15 02:20:27,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:20:27,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290352 states. [2020-10-15 02:20:47,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290352 to 263870. [2020-10-15 02:20:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263870 states. [2020-10-15 02:20:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263870 states to 263870 states and 378818 transitions. [2020-10-15 02:20:47,744 INFO L78 Accepts]: Start accepts. Automaton has 263870 states and 378818 transitions. Word has length 85 [2020-10-15 02:20:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:47,745 INFO L479 AbstractCegarLoop]: Abstraction has 263870 states and 378818 transitions. [2020-10-15 02:20:47,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 263870 states and 378818 transitions. [2020-10-15 02:20:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:20:47,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:47,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:47,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:20:47,768 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:47,768 INFO L82 PathProgramCache]: Analyzing trace with hash 777527147, now seen corresponding path program 1 times [2020-10-15 02:20:47,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:47,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127013129] [2020-10-15 02:20:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:47,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:47,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:52,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:20:52,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 02:20:52,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:52,956 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:52,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:52,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:52,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:52,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 02:20:52,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:20:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 02:20:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:53,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:20:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:20:53,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:53,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:20:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:20:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-15 02:20:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:20:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:20:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:53,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:53,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127013129] [2020-10-15 02:20:53,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:53,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:53,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784230314] [2020-10-15 02:20:53,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:53,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:53,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:53,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:53,192 INFO L87 Difference]: Start difference. First operand 263870 states and 378818 transitions. Second operand 9 states. [2020-10-15 02:20:53,396 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:53,605 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:20:53,811 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:20:54,489 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:20:55,296 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151