/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=NARROWEST --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-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:23:49,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:23:49,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:23:49,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:23:49,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:23:49,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:23:49,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:23:49,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:23:49,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:23:49,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:23:49,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:23:49,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:23:49,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:23:49,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:23:49,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:23:49,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:23:49,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:23:49,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:23:49,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:23:49,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:23:49,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:23:49,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:23:49,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:23:49,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:23:49,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:23:49,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:23:49,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:23:49,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:23:49,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:23:49,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:23:49,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:23:49,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:23:49,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:23:49,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:23:49,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:23:49,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:23:49,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:23:49,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:23:49,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:23:49,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:23:49,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:23:49,880 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 [2020-10-13 14:23:49,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:23:49,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:23:49,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:23:49,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:23:49,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:23:49,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:23:49,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:23:49,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:23:49,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:23:49,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:23:49,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:23:49,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:23:49,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:23:49,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:23:49,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:23:49,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:23:49,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:23:49,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:23:49,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:23:49,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:23:49,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:23:49,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:23:49,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:23:49,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:23:49,922 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:23:50,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:23:50,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:23:50,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:23:50,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:23:50,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:23:50,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-13 14:23:50,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95e3578ea/3e3e5e54dac141baa196ad01e3309f9a/FLAGfb9a80890 [2020-10-13 14:23:51,076 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:23:51,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-13 14:23:51,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95e3578ea/3e3e5e54dac141baa196ad01e3309f9a/FLAGfb9a80890 [2020-10-13 14:23:51,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95e3578ea/3e3e5e54dac141baa196ad01e3309f9a [2020-10-13 14:23:51,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:23:51,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:23:51,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:23:51,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:23:51,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:23:51,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:23:51" (1/1) ... [2020-10-13 14:23:51,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f71ec06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:51, skipping insertion in model container [2020-10-13 14:23:51,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:23:51" (1/1) ... [2020-10-13 14:23:51,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:23:51,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:23:53,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:23:53,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:23:54,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:23:54,733 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:23:54,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54 WrapperNode [2020-10-13 14:23:54,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:23:54,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:23:54,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:23:54,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:23:54,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:54,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:54,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:54,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:54,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:54,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:55,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (1/1) ... [2020-10-13 14:23:55,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:23:55,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:23:55,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:23:55,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:23:55,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (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 [2020-10-13 14:23:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:23:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:23:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:23:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:23:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:23:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:23:55,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:23:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 14:23:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:23:55,136 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:23:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:23:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:23:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:23:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:23:55,137 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:23:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:23:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:23:55,138 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 14:23:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 14:23:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:23:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:23:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:23:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:23:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:24:00,802 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:24:00,802 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:24:00,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:24:00 BoogieIcfgContainer [2020-10-13 14:24:00,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:24:00,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:24:00,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:24:00,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:24:00,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:23:51" (1/3) ... [2020-10-13 14:24:00,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f7c0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:24:00, skipping insertion in model container [2020-10-13 14:24:00,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:23:54" (2/3) ... [2020-10-13 14:24:00,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f7c0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:24:00, skipping insertion in model container [2020-10-13 14:24:00,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:24:00" (3/3) ... [2020-10-13 14:24:00,824 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-10-13 14:24:00,834 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:24:00,843 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-13 14:24:00,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-13 14:24:00,891 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:24:00,891 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:24:00,891 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:24:00,891 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:24:00,891 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:24:00,891 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:24:00,892 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:24:00,892 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:24:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states. [2020-10-13 14:24:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 14:24:00,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:24:00,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:24:00,970 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:24:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:24:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1279682657, now seen corresponding path program 1 times [2020-10-13 14:24:00,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:24:00,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865090686] [2020-10-13 14:24:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:24:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:01,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:01,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:02,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:02,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:02,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:03,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:06,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 14:24:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:24:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 14:24:06,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:24:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:24:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 14:24:06,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:24:07,659 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:24:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:24:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:07,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:07,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:07,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:24:07,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:24:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 14:24:07,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:24:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:24:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:24:07,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:24:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:24:07,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865090686] [2020-10-13 14:24:07,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:24:07,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:24:07,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846451101] [2020-10-13 14:24:07,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:24:07,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:24:07,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:24:07,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:24:07,787 INFO L87 Difference]: Start difference. First operand 2353 states. Second operand 7 states. [2020-10-13 14:24:08,838 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:24:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:24:29,751 INFO L93 Difference]: Finished difference Result 5091 states and 8717 transitions. [2020-10-13 14:24:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:24:29,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 14:24:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:24:29,799 INFO L225 Difference]: With dead ends: 5091 [2020-10-13 14:24:29,799 INFO L226 Difference]: Without dead ends: 4442 [2020-10-13 14:24:29,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:24:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4442 states. [2020-10-13 14:24:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4442 to 2954. [2020-10-13 14:24:29,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2954 states. [2020-10-13 14:24:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 3931 transitions. [2020-10-13 14:24:30,000 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 3931 transitions. Word has length 90 [2020-10-13 14:24:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:24:30,001 INFO L479 AbstractCegarLoop]: Abstraction has 2954 states and 3931 transitions. [2020-10-13 14:24:30,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:24:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 3931 transitions. [2020-10-13 14:24:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 14:24:30,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:24:30,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:24:30,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:24:30,012 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:24:30,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:24:30,012 INFO L82 PathProgramCache]: Analyzing trace with hash -2102835369, now seen corresponding path program 1 times [2020-10-13 14:24:30,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:24:30,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447799929] [2020-10-13 14:24:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:24:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:30,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:30,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:30,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:30,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:35,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:35,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 14:24:35,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:24:35,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 14:24:35,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:35,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:24:35,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:24:35,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 14:24:35,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-13 14:24:36,269 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:24:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:24:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:36,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:36,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:24:36,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:24:36,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 14:24:36,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:36,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:24:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:24:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:24:36,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:24:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:24:36,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447799929] [2020-10-13 14:24:36,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:24:36,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:24:36,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996346267] [2020-10-13 14:24:36,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:24:36,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:24:36,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:24:36,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:24:36,356 INFO L87 Difference]: Start difference. First operand 2954 states and 3931 transitions. Second operand 7 states. [2020-10-13 14:24:37,394 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:24:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:24:53,010 INFO L93 Difference]: Finished difference Result 7249 states and 9919 transitions. [2020-10-13 14:24:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:24:53,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 14:24:53,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:24:53,044 INFO L225 Difference]: With dead ends: 7249 [2020-10-13 14:24:53,045 INFO L226 Difference]: Without dead ends: 6719 [2020-10-13 14:24:53,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:24:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2020-10-13 14:24:53,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 3958. [2020-10-13 14:24:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3958 states. [2020-10-13 14:24:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 5426 transitions. [2020-10-13 14:24:53,215 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 5426 transitions. Word has length 90 [2020-10-13 14:24:53,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:24:53,216 INFO L479 AbstractCegarLoop]: Abstraction has 3958 states and 5426 transitions. [2020-10-13 14:24:53,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:24:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 5426 transitions. [2020-10-13 14:24:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 14:24:53,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:24:53,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:24:53,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:24:53,225 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:24:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:24:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash 495666971, now seen corresponding path program 1 times [2020-10-13 14:24:53,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:24:53,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964151620] [2020-10-13 14:24:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:24:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:53,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:53,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:53,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:54,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:58,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 14:24:58,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:24:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 14:24:58,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:24:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:24:58,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 14:24:58,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:24:59,848 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:24:59,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:24:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:24:59,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:24:59,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:24:59,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:24:59,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:24:59,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 14:24:59,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:24:59,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:24:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:24:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:24:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:24:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:24:59,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964151620] [2020-10-13 14:24:59,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:24:59,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:24:59,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92683026] [2020-10-13 14:24:59,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:24:59,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:24:59,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:24:59,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:24:59,939 INFO L87 Difference]: Start difference. First operand 3958 states and 5426 transitions. Second operand 7 states. [2020-10-13 14:25:01,011 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:25:15,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:25:15,788 INFO L93 Difference]: Finished difference Result 10716 states and 15124 transitions. [2020-10-13 14:25:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:25:15,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 14:25:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:25:15,827 INFO L225 Difference]: With dead ends: 10716 [2020-10-13 14:25:15,828 INFO L226 Difference]: Without dead ends: 9558 [2020-10-13 14:25:15,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:25:15,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9558 states. [2020-10-13 14:25:16,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9558 to 6153. [2020-10-13 14:25:16,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6153 states. [2020-10-13 14:25:16,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 8658 transitions. [2020-10-13 14:25:16,222 INFO L78 Accepts]: Start accepts. Automaton has 6153 states and 8658 transitions. Word has length 90 [2020-10-13 14:25:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:25:16,223 INFO L479 AbstractCegarLoop]: Abstraction has 6153 states and 8658 transitions. [2020-10-13 14:25:16,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:25:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6153 states and 8658 transitions. [2020-10-13 14:25:16,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 14:25:16,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:25:16,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:25:16,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:25:16,240 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:25:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:25:16,241 INFO L82 PathProgramCache]: Analyzing trace with hash -783314177, now seen corresponding path program 1 times [2020-10-13 14:25:16,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:25:16,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354577066] [2020-10-13 14:25:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:25:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:25:16,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:16,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:17,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:18,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:19,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:25:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 14:25:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:25:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 14:25:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:25:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:25:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:25:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 14:25:21,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:25:22,383 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:25:22,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:25:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:25:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:22,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:25:22,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:25:22,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:25:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 14:25:22,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:25:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:25:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:25:22,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:25:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:25:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:25:22,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354577066] [2020-10-13 14:25:22,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:25:22,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:25:22,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919056325] [2020-10-13 14:25:22,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:25:22,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:25:22,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:25:22,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:25:22,461 INFO L87 Difference]: Start difference. First operand 6153 states and 8658 transitions. Second operand 7 states. [2020-10-13 14:25:23,467 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:25:36,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:25:36,720 INFO L93 Difference]: Finished difference Result 14826 states and 21461 transitions. [2020-10-13 14:25:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:25:36,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 14:25:36,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:25:36,778 INFO L225 Difference]: With dead ends: 14826 [2020-10-13 14:25:36,778 INFO L226 Difference]: Without dead ends: 13490 [2020-10-13 14:25:36,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:25:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13490 states. [2020-10-13 14:25:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13490 to 7234. [2020-10-13 14:25:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7234 states. [2020-10-13 14:25:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 10250 transitions. [2020-10-13 14:25:37,177 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 10250 transitions. Word has length 90 [2020-10-13 14:25:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:25:37,177 INFO L479 AbstractCegarLoop]: Abstraction has 7234 states and 10250 transitions. [2020-10-13 14:25:37,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:25:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 10250 transitions. [2020-10-13 14:25:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 14:25:37,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:25:37,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:25:37,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:25:37,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:25:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:25:37,193 INFO L82 PathProgramCache]: Analyzing trace with hash -630538883, now seen corresponding path program 1 times [2020-10-13 14:25:37,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:25:37,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482516622] [2020-10-13 14:25:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:25:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:25:37,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:37,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:37,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:38,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:42,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:25:42,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 14:25:42,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:25:42,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 14:25:42,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:25:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:25:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:25:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 14:25:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:25:43,352 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:25:43,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:25:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:25:43,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:43,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:25:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:25:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:25:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:25:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:25:43,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482516622] [2020-10-13 14:25:43,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:25:43,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:25:43,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240295837] [2020-10-13 14:25:43,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:25:43,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:25:43,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:25:43,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:25:43,415 INFO L87 Difference]: Start difference. First operand 7234 states and 10250 transitions. Second operand 7 states. [2020-10-13 14:25:44,461 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:25:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:25:59,025 INFO L93 Difference]: Finished difference Result 13201 states and 19092 transitions. [2020-10-13 14:25:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:25:59,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 14:25:59,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:25:59,051 INFO L225 Difference]: With dead ends: 13201 [2020-10-13 14:25:59,052 INFO L226 Difference]: Without dead ends: 11724 [2020-10-13 14:25:59,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:25:59,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11724 states. [2020-10-13 14:25:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11724 to 7049. [2020-10-13 14:25:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2020-10-13 14:25:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 9999 transitions. [2020-10-13 14:25:59,502 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 9999 transitions. Word has length 90 [2020-10-13 14:25:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:25:59,503 INFO L479 AbstractCegarLoop]: Abstraction has 7049 states and 9999 transitions. [2020-10-13 14:25:59,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:25:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 9999 transitions. [2020-10-13 14:25:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 14:25:59,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:25:59,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:25:59,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:25:59,516 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:25:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:25:59,517 INFO L82 PathProgramCache]: Analyzing trace with hash 262123214, now seen corresponding path program 1 times [2020-10-13 14:25:59,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:25:59,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081730536] [2020-10-13 14:25:59,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:25:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:25:59,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:59,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:59,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:59,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:25:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:00,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:04,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:04,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 14:26:04,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:26:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 14:26:04,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:26:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:26:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 14:26:04,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:05,668 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:26:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:26:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:05,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:05,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:05,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:26:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:26:05,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081730536] [2020-10-13 14:26:05,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:26:05,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:26:05,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786560054] [2020-10-13 14:26:05,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:26:05,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:26:05,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:26:05,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:26:05,714 INFO L87 Difference]: Start difference. First operand 7049 states and 9999 transitions. Second operand 7 states. [2020-10-13 14:26:06,770 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:26:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:26:18,883 INFO L93 Difference]: Finished difference Result 21713 states and 32016 transitions. [2020-10-13 14:26:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:26:18,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-13 14:26:18,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:26:18,921 INFO L225 Difference]: With dead ends: 21713 [2020-10-13 14:26:18,921 INFO L226 Difference]: Without dead ends: 19516 [2020-10-13 14:26:18,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:26:18,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19516 states. [2020-10-13 14:26:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19516 to 9470. [2020-10-13 14:26:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9470 states. [2020-10-13 14:26:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9470 states to 9470 states and 13571 transitions. [2020-10-13 14:26:19,513 INFO L78 Accepts]: Start accepts. Automaton has 9470 states and 13571 transitions. Word has length 91 [2020-10-13 14:26:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:26:19,513 INFO L479 AbstractCegarLoop]: Abstraction has 9470 states and 13571 transitions. [2020-10-13 14:26:19,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:26:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 9470 states and 13571 transitions. [2020-10-13 14:26:19,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 14:26:19,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:26:19,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:26:19,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:26:19,524 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:26:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:26:19,524 INFO L82 PathProgramCache]: Analyzing trace with hash -7926100, now seen corresponding path program 1 times [2020-10-13 14:26:19,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:26:19,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123788017] [2020-10-13 14:26:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:26:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:19,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:20,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:22,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:22,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:23,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:24,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 14:26:24,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 14:26:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 14:26:24,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:24,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:26:24,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 14:26:24,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 14:26:24,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:25,633 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:26:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:26:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:25,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:26:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:26:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:26:25,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123788017] [2020-10-13 14:26:25,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:26:25,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:26:25,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701440686] [2020-10-13 14:26:25,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:26:25,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:26:25,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:26:25,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:26:25,688 INFO L87 Difference]: Start difference. First operand 9470 states and 13571 transitions. Second operand 7 states. [2020-10-13 14:26:26,722 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:26:38,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:26:38,588 INFO L93 Difference]: Finished difference Result 22826 states and 33728 transitions. [2020-10-13 14:26:38,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:26:38,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-13 14:26:38,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:26:38,617 INFO L225 Difference]: With dead ends: 22826 [2020-10-13 14:26:38,617 INFO L226 Difference]: Without dead ends: 18960 [2020-10-13 14:26:38,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:26:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18960 states. [2020-10-13 14:26:39,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18960 to 9081. [2020-10-13 14:26:39,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9081 states. [2020-10-13 14:26:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9081 states to 9081 states and 13041 transitions. [2020-10-13 14:26:39,363 INFO L78 Accepts]: Start accepts. Automaton has 9081 states and 13041 transitions. Word has length 91 [2020-10-13 14:26:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:26:39,363 INFO L479 AbstractCegarLoop]: Abstraction has 9081 states and 13041 transitions. [2020-10-13 14:26:39,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:26:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 9081 states and 13041 transitions. [2020-10-13 14:26:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 14:26:39,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:26:39,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:26:39,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 14:26:39,373 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:26:39,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:26:39,373 INFO L82 PathProgramCache]: Analyzing trace with hash 454775950, now seen corresponding path program 1 times [2020-10-13 14:26:39,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:26:39,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788658445] [2020-10-13 14:26:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:26:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:39,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:39,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:39,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:40,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:41,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:44,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 14:26:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:45,436 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:26:45,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:26:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:45,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:45,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:26:45,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:26:45,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:26:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 14:26:45,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:26:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:26:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:26:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:26:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:26:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:26:45,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788658445] [2020-10-13 14:26:45,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:26:45,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:26:45,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427592361] [2020-10-13 14:26:45,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:26:45,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:26:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:26:45,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:26:45,483 INFO L87 Difference]: Start difference. First operand 9081 states and 13041 transitions. Second operand 7 states. [2020-10-13 14:26:46,508 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:26:56,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:26:56,973 INFO L93 Difference]: Finished difference Result 19996 states and 29470 transitions. [2020-10-13 14:26:56,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:26:56,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-13 14:26:56,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:26:56,998 INFO L225 Difference]: With dead ends: 19996 [2020-10-13 14:26:56,999 INFO L226 Difference]: Without dead ends: 17448 [2020-10-13 14:26:57,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:26:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17448 states. [2020-10-13 14:26:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17448 to 8904. [2020-10-13 14:26:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8904 states. [2020-10-13 14:26:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 12812 transitions. [2020-10-13 14:26:57,534 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 12812 transitions. Word has length 91 [2020-10-13 14:26:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:26:57,534 INFO L479 AbstractCegarLoop]: Abstraction has 8904 states and 12812 transitions. [2020-10-13 14:26:57,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:26:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 12812 transitions. [2020-10-13 14:26:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 14:26:57,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:26:57,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:26:57,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 14:26:57,544 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:26:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:26:57,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1209469721, now seen corresponding path program 1 times [2020-10-13 14:26:57,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:26:57,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881595015] [2020-10-13 14:26:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:26:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:26:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:57,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:57,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:57,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:58,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:26:59,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:27:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:27:03,611 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:27:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:27:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:27:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:03,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:27:03,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:27:03,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:27:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 14:27:03,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:27:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:27:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:27:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:27:03,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:27:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:27:03,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881595015] [2020-10-13 14:27:03,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:27:03,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:27:03,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769456794] [2020-10-13 14:27:03,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:27:03,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:27:03,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:27:03,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:27:03,679 INFO L87 Difference]: Start difference. First operand 8904 states and 12812 transitions. Second operand 7 states. [2020-10-13 14:27:04,714 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2020-10-13 14:27:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:27:15,882 INFO L93 Difference]: Finished difference Result 24785 states and 36707 transitions. [2020-10-13 14:27:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:27:15,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-13 14:27:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:27:15,909 INFO L225 Difference]: With dead ends: 24785 [2020-10-13 14:27:15,909 INFO L226 Difference]: Without dead ends: 22277 [2020-10-13 14:27:15,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:27:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22277 states. [2020-10-13 14:27:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22277 to 10987. [2020-10-13 14:27:16,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10987 states. [2020-10-13 14:27:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10987 states to 10987 states and 15945 transitions. [2020-10-13 14:27:16,588 INFO L78 Accepts]: Start accepts. Automaton has 10987 states and 15945 transitions. Word has length 92 [2020-10-13 14:27:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:27:16,589 INFO L479 AbstractCegarLoop]: Abstraction has 10987 states and 15945 transitions. [2020-10-13 14:27:16,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:27:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10987 states and 15945 transitions. [2020-10-13 14:27:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 14:27:16,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:27:16,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:27:16,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 14:27:16,597 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:27:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:27:16,597 INFO L82 PathProgramCache]: Analyzing trace with hash -749901001, now seen corresponding path program 1 times [2020-10-13 14:27:16,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:27:16,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345279412] [2020-10-13 14:27:16,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:27:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:27:16,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:16,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:17,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:17,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:17,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:19,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:20,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:20,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:21,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 14:27:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:27:22,760 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2020-10-13 14:27:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:27:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:27:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:22,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:27:22,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:27:22,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:27:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 14:27:22,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:27:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 14:27:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:27:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 14:27:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:27:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:27:22,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345279412] [2020-10-13 14:27:22,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:27:22,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 14:27:22,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456380604] [2020-10-13 14:27:22,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 14:27:22,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:27:22,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 14:27:22,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 14:27:22,838 INFO L87 Difference]: Start difference. First operand 10987 states and 15945 transitions. Second operand 6 states. [2020-10-13 14:27:23,850 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 475 [2020-10-13 14:27:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:27:33,238 INFO L93 Difference]: Finished difference Result 18471 states and 26914 transitions. [2020-10-13 14:27:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 14:27:33,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2020-10-13 14:27:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:27:33,253 INFO L225 Difference]: With dead ends: 18471 [2020-10-13 14:27:33,253 INFO L226 Difference]: Without dead ends: 14719 [2020-10-13 14:27:33,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 14:27:33,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2020-10-13 14:27:33,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 11083. [2020-10-13 14:27:33,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11083 states. [2020-10-13 14:27:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11083 states to 11083 states and 15970 transitions. [2020-10-13 14:27:33,954 INFO L78 Accepts]: Start accepts. Automaton has 11083 states and 15970 transitions. Word has length 92 [2020-10-13 14:27:33,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:27:33,955 INFO L479 AbstractCegarLoop]: Abstraction has 11083 states and 15970 transitions. [2020-10-13 14:27:33,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 14:27:33,955 INFO L276 IsEmpty]: Start isEmpty. Operand 11083 states and 15970 transitions. [2020-10-13 14:27:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 14:27:33,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:27:33,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 14:27:33,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 14:27:33,962 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:27:33,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:27:33,962 INFO L82 PathProgramCache]: Analyzing trace with hash -979757433, now seen corresponding path program 1 times [2020-10-13 14:27:33,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:27:33,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241728936] [2020-10-13 14:27:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:27:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:27:34,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:34,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:27:34,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking...