/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/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:38:47,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:38:47,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:38:47,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:38:47,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:38:47,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:38:47,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:38:47,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:38:47,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:38:47,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:38:47,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:38:47,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:38:47,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:38:47,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:38:47,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:38:47,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:38:47,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:38:47,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:38:47,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:38:47,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:38:47,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:38:47,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:38:47,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:38:47,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:38:47,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:38:47,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:38:47,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:38:47,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:38:47,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:38:47,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:38:47,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:38:47,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:38:47,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:38:47,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:38:47,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:38:47,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:38:47,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:38:47,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:38:47,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:38:47,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:38:47,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:38:47,865 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 13:38:47,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:38:47,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:38:47,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:38:47,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:38:47,912 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:38:47,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:38:47,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:38:47,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:38:47,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:38:47,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:38:47,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:38:47,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:38:47,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:38:47,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:38:47,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:38:47,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:38:47,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:38:47,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:38:47,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:38:47,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:38:47,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:38:47,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:38:47,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:38:47,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:38:47,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:38:47,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:38:47,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:38:47,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:38:47,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:38:47,917 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 13:38:48,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:38:48,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:38:48,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:38:48,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:38:48,232 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:38:48,233 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:38:48,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/896c5c9c0/e2c88c74ba8540a7a81ce8c19248cfec/FLAG0b131c254 [2020-10-13 13:38:48,856 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:38:48,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:38:48,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/896c5c9c0/e2c88c74ba8540a7a81ce8c19248cfec/FLAG0b131c254 [2020-10-13 13:38:49,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/896c5c9c0/e2c88c74ba8540a7a81ce8c19248cfec [2020-10-13 13:38:49,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:38:49,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:38:49,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:38:49,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:38:49,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:38:49,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc1c481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49, skipping insertion in model container [2020-10-13 13:38:49,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:38:49,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:38:49,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:38:49,682 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:38:49,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:38:49,800 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:38:49,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49 WrapperNode [2020-10-13 13:38:49,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:38:49,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:38:49,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:38:49,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:38:49,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (1/1) ... [2020-10-13 13:38:49,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:38:49,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:38:49,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:38:49,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:38:49,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (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 13:38:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:38:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:38:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:38:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:38:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:38:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:38:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:38:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:38:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:38:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:38:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:38:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:38:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:38:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:38:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:38:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:38:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:38:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:38:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:38:51,235 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:38:51,235 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:38:51,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:38:51 BoogieIcfgContainer [2020-10-13 13:38:51,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:38:51,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:38:51,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:38:51,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:38:51,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:38:49" (1/3) ... [2020-10-13 13:38:51,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1882614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:38:51, skipping insertion in model container [2020-10-13 13:38:51,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:38:49" (2/3) ... [2020-10-13 13:38:51,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1882614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:38:51, skipping insertion in model container [2020-10-13 13:38:51,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:38:51" (3/3) ... [2020-10-13 13:38:51,251 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:38:51,261 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:38:51,270 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:38:51,284 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:38:51,311 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:38:51,312 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:38:51,312 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:38:51,312 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:38:51,312 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:38:51,313 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:38:51,313 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:38:51,313 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:38:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-10-13 13:38:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:38:51,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:38:51,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:38:51,359 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:38:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:38:51,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1203429143, now seen corresponding path program 1 times [2020-10-13 13:38:51,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:38:51,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293351598] [2020-10-13 13:38:51,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:38:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:51,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:52,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:52,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:38:52,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:52,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-13 13:38:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:38:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:38:52,987 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:38:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:38:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:38:53,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 13:38:53,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:38:53,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:38:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:38:53,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 13:38:53,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:38:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:38:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:38:53,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:38:53,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:38:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:38:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:53,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:38:53,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:53,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:38:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:53,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:38:53,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:38:53,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:38:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:53,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:38:53,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:53,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 13:38:53,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:38:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:38:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:38:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:53,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:53,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:53,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:38:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:38:53,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:38:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:53,594 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 13:38:53,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293351598] [2020-10-13 13:38:53,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:38:53,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:38:53,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875155296] [2020-10-13 13:38:53,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:38:53,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:38:53,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:38:53,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:38:53,623 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 7 states. [2020-10-13 13:38:55,063 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:38:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:38:56,328 INFO L93 Difference]: Finished difference Result 548 states and 919 transitions. [2020-10-13 13:38:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:38:56,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-13 13:38:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:38:56,365 INFO L225 Difference]: With dead ends: 548 [2020-10-13 13:38:56,366 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 13:38:56,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:38:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 13:38:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 348. [2020-10-13 13:38:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-13 13:38:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 595 transitions. [2020-10-13 13:38:56,519 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 595 transitions. Word has length 108 [2020-10-13 13:38:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:38:56,520 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 595 transitions. [2020-10-13 13:38:56,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:38:56,520 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 595 transitions. [2020-10-13 13:38:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:38:56,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:38:56,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:38:56,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:38:56,527 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:38:56,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:38:56,527 INFO L82 PathProgramCache]: Analyzing trace with hash -309942805, now seen corresponding path program 1 times [2020-10-13 13:38:56,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:38:56,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293998774] [2020-10-13 13:38:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:38:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:56,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:57,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:57,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:38:57,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:57,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1346 [2020-10-13 13:38:57,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:57,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:38:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:38:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:38:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:58,409 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:38:58,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:38:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:58,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:58,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:38:58,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:38:58,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:38:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:38:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:58,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:58,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:58,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:38:58,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:58,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-13 13:38:58,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:38:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:38:58,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:38:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:38:58,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:38:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:58,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:58,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:58,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:38:58,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:58,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:38:58,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:38:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:38:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:38:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:38:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:38:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:59,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:59,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:59,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:59,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:59,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:38:59,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:59,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:59,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:59,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:59,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:38:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:59,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:59,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:59,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:59,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:38:59,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:59,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:59,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:38:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:59,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:59,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:59,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:38:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:59,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:59,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:38:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:59,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:59,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:59,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:38:59,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:38:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:38:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:59,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:38:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:38:59,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:38:59,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:38:59,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:38:59,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:38:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:38:59,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:38:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:38:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:38:59,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:38:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:38:59,337 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 13:38:59,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293998774] [2020-10-13 13:38:59,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:38:59,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:38:59,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141491184] [2020-10-13 13:38:59,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:38:59,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:38:59,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:38:59,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:38:59,342 INFO L87 Difference]: Start difference. First operand 348 states and 595 transitions. Second operand 13 states. [2020-10-13 13:39:01,812 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:39:02,293 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:39:02,796 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 13:39:03,223 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-13 13:39:03,857 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:39:06,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:39:06,107 INFO L93 Difference]: Finished difference Result 546 states and 911 transitions. [2020-10-13 13:39:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:39:06,110 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-13 13:39:06,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:39:06,113 INFO L225 Difference]: With dead ends: 546 [2020-10-13 13:39:06,113 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 13:39:06,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:39:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 13:39:06,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 348. [2020-10-13 13:39:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-13 13:39:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 561 transitions. [2020-10-13 13:39:06,199 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 561 transitions. Word has length 108 [2020-10-13 13:39:06,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:39:06,200 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 561 transitions. [2020-10-13 13:39:06,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:39:06,200 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 561 transitions. [2020-10-13 13:39:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 13:39:06,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:39:06,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:39:06,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:39:06,205 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:39:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:39:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1596338959, now seen corresponding path program 1 times [2020-10-13 13:39:06,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:39:06,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773430263] [2020-10-13 13:39:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:39:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:06,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:06,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:06,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:08,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:11,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:11,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 13:39:11,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:39:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 13:39:11,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:39:11,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:39:11,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:39:11,812 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:39:11,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:39:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:11,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:39:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:39:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:39:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:11,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:11,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:39:11,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 13:39:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:39:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:39:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:39:12,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:39:12,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:39:12,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:39:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:12,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:39:12,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:39:12,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:39:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:12,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:39:12,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:39:12,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:12,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:39:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:12,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:39:12,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:39:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:39:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:12,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:39:12,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:12,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:39:12,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:39:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:12,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:12,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:39:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:12,356 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 13:39:12,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773430263] [2020-10-13 13:39:12,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:39:12,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:39:12,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538474104] [2020-10-13 13:39:12,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:39:12,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:39:12,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:39:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:39:12,359 INFO L87 Difference]: Start difference. First operand 348 states and 561 transitions. Second operand 10 states. [2020-10-13 13:39:12,768 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:39:15,038 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:39:15,436 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:15,738 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:39:16,152 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:16,993 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:18,375 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:39:18,786 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:18,932 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:39:19,178 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:39:19,289 INFO L93 Difference]: Finished difference Result 742 states and 1194 transitions. [2020-10-13 13:39:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:39:19,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2020-10-13 13:39:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:39:19,296 INFO L225 Difference]: With dead ends: 742 [2020-10-13 13:39:19,296 INFO L226 Difference]: Without dead ends: 590 [2020-10-13 13:39:19,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:39:19,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-10-13 13:39:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 501. [2020-10-13 13:39:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-10-13 13:39:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 801 transitions. [2020-10-13 13:39:19,346 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 801 transitions. Word has length 141 [2020-10-13 13:39:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:39:19,347 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 801 transitions. [2020-10-13 13:39:19,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:39:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 801 transitions. [2020-10-13 13:39:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 13:39:19,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:39:19,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:39:19,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:39:19,351 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:39:19,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:39:19,352 INFO L82 PathProgramCache]: Analyzing trace with hash -476542828, now seen corresponding path program 1 times [2020-10-13 13:39:19,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:39:19,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131569867] [2020-10-13 13:39:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:39:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:19,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:19,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:19,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:23,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:39:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:39:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:24,874 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:39:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:39:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:24,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:24,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:39:24,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:39:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:24,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:39:25,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 13:39:25,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:25,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:39:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:39:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:39:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:39:25,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:39:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:39:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:39:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:39:25,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:39:25,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:39:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:25,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:39:25,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:39:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:25,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:39:25,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:39:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:25,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 13:39:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:39:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:39:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:39:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:25,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:25,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:25,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:39:25,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:39:25,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:39:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:25,335 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 13:39:25,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131569867] [2020-10-13 13:39:25,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:39:25,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:39:25,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546233051] [2020-10-13 13:39:25,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:39:25,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:39:25,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:39:25,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:39:25,338 INFO L87 Difference]: Start difference. First operand 501 states and 801 transitions. Second operand 10 states. [2020-10-13 13:39:25,696 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:39:27,639 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:28,138 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:39:28,419 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:39:28,775 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:29,442 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:39:31,267 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:39:31,403 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:31,531 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:39:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:39:31,880 INFO L93 Difference]: Finished difference Result 1279 states and 2039 transitions. [2020-10-13 13:39:31,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:39:31,880 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 144 [2020-10-13 13:39:31,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:39:31,887 INFO L225 Difference]: With dead ends: 1279 [2020-10-13 13:39:31,888 INFO L226 Difference]: Without dead ends: 974 [2020-10-13 13:39:31,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:39:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2020-10-13 13:39:31,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 808. [2020-10-13 13:39:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-10-13 13:39:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1287 transitions. [2020-10-13 13:39:32,004 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1287 transitions. Word has length 144 [2020-10-13 13:39:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:39:32,005 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 1287 transitions. [2020-10-13 13:39:32,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:39:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1287 transitions. [2020-10-13 13:39:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 13:39:32,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:39:32,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:39:32,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:39:32,009 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:39:32,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:39:32,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1130094491, now seen corresponding path program 1 times [2020-10-13 13:39:32,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:39:32,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909728276] [2020-10-13 13:39:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:39:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:32,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:32,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:32,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:37,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:37,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:39:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:37,594 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:39:37,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:39:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:37,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:37,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:37,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:39:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:39:37,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:39:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:39:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:39:37,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:39:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:37,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:37,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:37,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:39:37,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:37,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 13:39:37,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:37,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:39:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:37,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 13:39:37,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:39:38,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:39:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:39:38,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:39:38,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:39:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:39:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:39:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:39:38,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:39:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:39:38,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:39:38,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:38,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:38,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:39:38,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:39:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:38,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:39:38,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:39:38,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:39:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:39:38,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:39:38,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:39:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:39:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:39:38,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:39:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:39:38,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:39:38,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:39:38,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:39:38,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:39:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:39:38,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:39:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:39:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:39:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:39:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:39:38,550 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 13:39:38,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909728276] [2020-10-13 13:39:38,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:39:38,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:39:38,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911371283] [2020-10-13 13:39:38,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:39:38,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:39:38,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:39:38,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:39:38,553 INFO L87 Difference]: Start difference. First operand 808 states and 1287 transitions. Second operand 16 states. [2020-10-13 13:39:38,976 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:39:40,923 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:39:41,295 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 13:39:41,693 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:39:42,022 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:39:42,430 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:39:42,654 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:39:43,041 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 13:39:43,416 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:39:43,785 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-13 13:39:44,168 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:39:45,051 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2020-10-13 13:39:45,220 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:39:45,703 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2020-10-13 13:39:45,838 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:39:46,201 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:39:46,376 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:39:47,302 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2020-10-13 13:39:47,470 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:39:47,646 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:39:48,332 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-10-13 13:39:48,517 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:49,570 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-13 13:39:49,729 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:39:49,886 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:39:50,024 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:39:50,808 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 259 [2020-10-13 13:39:51,799 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 262 [2020-10-13 13:39:52,110 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2020-10-13 13:39:53,536 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:39:53,880 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2020-10-13 13:39:54,523 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-13 13:39:54,831 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2020-10-13 13:39:55,108 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:55,995 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:39:56,372 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2020-10-13 13:39:56,947 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-13 13:39:57,249 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2020-10-13 13:39:57,510 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:57,882 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:39:58,252 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:39:58,887 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-13 13:39:59,220 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2020-10-13 13:39:59,407 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:39:59,629 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:39:59,763 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:00,538 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2020-10-13 13:40:00,889 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 131 [2020-10-13 13:40:01,230 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2020-10-13 13:40:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:02,154 INFO L93 Difference]: Finished difference Result 5602 states and 8991 transitions. [2020-10-13 13:40:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-13 13:40:02,155 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 147 [2020-10-13 13:40:02,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:02,186 INFO L225 Difference]: With dead ends: 5602 [2020-10-13 13:40:02,186 INFO L226 Difference]: Without dead ends: 4990 [2020-10-13 13:40:02,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=1004, Invalid=3826, Unknown=0, NotChecked=0, Total=4830 [2020-10-13 13:40:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2020-10-13 13:40:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 2737. [2020-10-13 13:40:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2737 states. [2020-10-13 13:40:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 4377 transitions. [2020-10-13 13:40:02,516 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 4377 transitions. Word has length 147 [2020-10-13 13:40:02,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:02,518 INFO L479 AbstractCegarLoop]: Abstraction has 2737 states and 4377 transitions. [2020-10-13 13:40:02,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:40:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 4377 transitions. [2020-10-13 13:40:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:40:02,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:02,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:40:02,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:40:02,523 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:02,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:02,523 INFO L82 PathProgramCache]: Analyzing trace with hash 576213357, now seen corresponding path program 1 times [2020-10-13 13:40:02,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:02,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029632236] [2020-10-13 13:40:02,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:02,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:02,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:03,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:03,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:07,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-13 13:40:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:40:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:08,104 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:08,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:08,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:40:08,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:08,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:08,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:40:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 13:40:08,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:40:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 13:40:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:40:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:08,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:40:08,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:08,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:40:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:08,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:40:08,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:40:08,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:40:08,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:40:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:40:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:08,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:40:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:08,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:40:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:40:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:40:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:08,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:40:08,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:40:08,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:40:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:08,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:08,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:08,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:08,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:08,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:08,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:08,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:40:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:40:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:08,831 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 13:40:08,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029632236] [2020-10-13 13:40:08,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:08,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:40:08,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009258298] [2020-10-13 13:40:08,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:40:08,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:40:08,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:40:08,838 INFO L87 Difference]: Start difference. First operand 2737 states and 4377 transitions. Second operand 11 states. [2020-10-13 13:40:09,400 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:11,214 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:40:11,498 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:40:11,833 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:12,136 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:12,452 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:12,589 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:13,053 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:13,853 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:14,622 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:15,516 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:40:15,866 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:40:16,625 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:40:16,795 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:40:16,992 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:40:17,199 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:40:18,243 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:19,048 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:19,805 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:20,435 INFO L93 Difference]: Finished difference Result 9166 states and 14749 transitions. [2020-10-13 13:40:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:40:20,439 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2020-10-13 13:40:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:20,472 INFO L225 Difference]: With dead ends: 9166 [2020-10-13 13:40:20,473 INFO L226 Difference]: Without dead ends: 6625 [2020-10-13 13:40:20,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:40:20,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2020-10-13 13:40:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 5335. [2020-10-13 13:40:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5335 states. [2020-10-13 13:40:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 8565 transitions. [2020-10-13 13:40:20,955 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 8565 transitions. Word has length 148 [2020-10-13 13:40:20,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:20,955 INFO L479 AbstractCegarLoop]: Abstraction has 5335 states and 8565 transitions. [2020-10-13 13:40:20,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:40:20,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 8565 transitions. [2020-10-13 13:40:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 13:40:20,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:20,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:20,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:40:20,962 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:20,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:20,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1880464156, now seen corresponding path program 1 times [2020-10-13 13:40:20,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:20,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186250425] [2020-10-13 13:40:20,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:21,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:21,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-13 13:40:26,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:40:26,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 13:40:26,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:40:26,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 13:40:26,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:40:26,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,501 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:26,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:26,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:26,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:40:26,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 13:40:26,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:40:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:40:26,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:40:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:26,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:40:26,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:26,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:40:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:26,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:40:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:26,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:40:26,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:40:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:40:26,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:40:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:26,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:40:26,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:40:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:40:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:26,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:26,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:26,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:40:26,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:40:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:26,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:40:26,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:40:26,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:40:26,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:40:26,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:27,037 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 13:40:27,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186250425] [2020-10-13 13:40:27,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:27,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:40:27,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53677634] [2020-10-13 13:40:27,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:40:27,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:40:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:40:27,039 INFO L87 Difference]: Start difference. First operand 5335 states and 8565 transitions. Second operand 11 states. [2020-10-13 13:40:27,438 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:29,473 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:40:29,772 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:30,237 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:40:30,758 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:30,943 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:31,414 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:31,738 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:32,464 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:33,426 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:40:33,771 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:40:34,887 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:35,058 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:35,300 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:36,086 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:40:36,312 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:40:36,456 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:40:36,633 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:40:37,625 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:37,803 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:38,704 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:38,955 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:39,665 INFO L93 Difference]: Finished difference Result 19195 states and 30964 transitions. [2020-10-13 13:40:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:40:39,666 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2020-10-13 13:40:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:39,737 INFO L225 Difference]: With dead ends: 19195 [2020-10-13 13:40:39,737 INFO L226 Difference]: Without dead ends: 14056 [2020-10-13 13:40:39,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:40:39,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14056 states. [2020-10-13 13:40:40,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14056 to 11310. [2020-10-13 13:40:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11310 states. [2020-10-13 13:40:40,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11310 states to 11310 states and 18225 transitions. [2020-10-13 13:40:40,510 INFO L78 Accepts]: Start accepts. Automaton has 11310 states and 18225 transitions. Word has length 149 [2020-10-13 13:40:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:40,511 INFO L479 AbstractCegarLoop]: Abstraction has 11310 states and 18225 transitions. [2020-10-13 13:40:40,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:40:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 11310 states and 18225 transitions. [2020-10-13 13:40:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-13 13:40:40,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:40,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:40:40,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:40:40,518 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash -689118972, now seen corresponding path program 1 times [2020-10-13 13:40:40,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:40,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041832835] [2020-10-13 13:40:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:40,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:41,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 13:40:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:40:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 13:40:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:40:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 13:40:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:40:45,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:45,944 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:45,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:45,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:45,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:45,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:45,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:40:46,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 13:40:46,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:40:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 13:40:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:40:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:46,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:46,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:40:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:46,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:40:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:40:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:40:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:46,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:40:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:40:46,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:40:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:46,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:40:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:40:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:46,349 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 13:40:46,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041832835] [2020-10-13 13:40:46,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:46,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:40:46,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876899273] [2020-10-13 13:40:46,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:40:46,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:46,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:40:46,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:40:46,351 INFO L87 Difference]: Start difference. First operand 11310 states and 18225 transitions. Second operand 11 states. [2020-10-13 13:40:46,753 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:48,846 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:40:49,162 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:49,625 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:50,081 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:40:50,509 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:50,788 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:51,415 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:52,330 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:40:52,697 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:40:54,083 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:54,255 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:55,611 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:40:55,875 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:56,059 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:57,093 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:40:57,363 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:40:57,613 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:40:57,841 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:40:58,917 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:40:59,119 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:40:59,284 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:01,257 INFO L93 Difference]: Finished difference Result 57243 states and 92461 transitions. [2020-10-13 13:41:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:41:01,258 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2020-10-13 13:41:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:01,498 INFO L225 Difference]: With dead ends: 57243 [2020-10-13 13:41:01,498 INFO L226 Difference]: Without dead ends: 46129 [2020-10-13 13:41:01,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:41:01,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46129 states. [2020-10-13 13:41:03,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46129 to 37369. [2020-10-13 13:41:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37369 states. [2020-10-13 13:41:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37369 states to 37369 states and 60104 transitions. [2020-10-13 13:41:03,602 INFO L78 Accepts]: Start accepts. Automaton has 37369 states and 60104 transitions. Word has length 150 [2020-10-13 13:41:03,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:03,602 INFO L479 AbstractCegarLoop]: Abstraction has 37369 states and 60104 transitions. [2020-10-13 13:41:03,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:41:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 37369 states and 60104 transitions. [2020-10-13 13:41:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:41:03,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:03,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:41:03,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:41:03,612 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:03,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1206497747, now seen corresponding path program 1 times [2020-10-13 13:41:03,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:03,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190337871] [2020-10-13 13:41:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:03,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:03,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:03,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:04,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:05,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:08,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:41:08,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:41:08,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 13:41:08,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:41:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:41:08,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,042 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:09,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:09,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:09,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:09,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:09,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:41:09,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:41:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:41:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:09,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:41:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:09,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:09,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:41:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:09,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:41:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:41:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:41:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:09,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:09,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:09,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:41:09,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:09,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:09,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:41:09,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:09,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:09,380 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 13:41:09,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190337871] [2020-10-13 13:41:09,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:09,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:41:09,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884691472] [2020-10-13 13:41:09,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:41:09,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:09,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:41:09,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:41:09,382 INFO L87 Difference]: Start difference. First operand 37369 states and 60104 transitions. Second operand 10 states. [2020-10-13 13:41:09,899 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:11,654 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:12,064 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:12,487 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:12,718 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:13,118 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:13,412 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:14,722 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:15,351 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:16,292 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:41:16,444 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:16,624 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:16,917 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:17,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:17,836 INFO L93 Difference]: Finished difference Result 97386 states and 156496 transitions. [2020-10-13 13:41:17,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:41:17,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-13 13:41:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:18,102 INFO L225 Difference]: With dead ends: 97386 [2020-10-13 13:41:18,102 INFO L226 Difference]: Without dead ends: 60213 [2020-10-13 13:41:18,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:41:18,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60213 states. [2020-10-13 13:41:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60213 to 47927. [2020-10-13 13:41:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47927 states. [2020-10-13 13:41:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47927 states to 47927 states and 77427 transitions. [2020-10-13 13:41:21,918 INFO L78 Accepts]: Start accepts. Automaton has 47927 states and 77427 transitions. Word has length 151 [2020-10-13 13:41:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:21,918 INFO L479 AbstractCegarLoop]: Abstraction has 47927 states and 77427 transitions. [2020-10-13 13:41:21,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:41:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 47927 states and 77427 transitions. [2020-10-13 13:41:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:41:21,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:21,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:41:21,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:41:21,929 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:21,929 INFO L82 PathProgramCache]: Analyzing trace with hash -929825429, now seen corresponding path program 1 times [2020-10-13 13:41:21,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:21,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494464074] [2020-10-13 13:41:21,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:22,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:22,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:41:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 13:41:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 13:41:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,323 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:27,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:41:27,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:27,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:27,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:41:27,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:41:27,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:41:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:41:27,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:41:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:27,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:41:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:27,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:27,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:27,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:27,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:41:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:41:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:27,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-13 13:41:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:27,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:41:27,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 13:41:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:27,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:41:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:27,704 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 13:41:27,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494464074] [2020-10-13 13:41:27,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:27,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:41:27,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180746176] [2020-10-13 13:41:27,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:41:27,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:27,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:41:27,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:41:27,707 INFO L87 Difference]: Start difference. First operand 47927 states and 77427 transitions. Second operand 11 states. [2020-10-13 13:41:28,085 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:29,995 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:41:30,455 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:30,888 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:31,323 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:31,705 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:32,871 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:33,226 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:34,910 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:35,124 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:35,294 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:36,722 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:37,016 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:37,494 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:37,671 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:38,881 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:39,177 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:39,702 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:39,877 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:40,798 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:41,133 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:41,645 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:41,846 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:43,307 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:45,359 INFO L93 Difference]: Finished difference Result 273461 states and 443136 transitions. [2020-10-13 13:41:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:41:45,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-13 13:41:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:46,221 INFO L225 Difference]: With dead ends: 273461 [2020-10-13 13:41:46,221 INFO L226 Difference]: Without dead ends: 225730 [2020-10-13 13:41:46,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:41:46,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225730 states. [2020-10-13 13:41:56,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225730 to 184530. [2020-10-13 13:41:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184530 states. [2020-10-13 13:41:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184530 states to 184530 states and 297549 transitions. [2020-10-13 13:41:56,456 INFO L78 Accepts]: Start accepts. Automaton has 184530 states and 297549 transitions. Word has length 154 [2020-10-13 13:41:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:56,457 INFO L479 AbstractCegarLoop]: Abstraction has 184530 states and 297549 transitions. [2020-10-13 13:41:56,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:41:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 184530 states and 297549 transitions. [2020-10-13 13:41:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:41:56,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:56,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:41:56,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:41:56,468 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:56,468 INFO L82 PathProgramCache]: Analyzing trace with hash 493258962, now seen corresponding path program 1 times [2020-10-13 13:41:56,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:56,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366982730] [2020-10-13 13:41:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:56,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:56,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:57,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:57,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:57,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:57,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:01,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 13:42:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:01,925 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:01,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:01,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:01,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:01,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:01,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:01,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:42:02,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:42:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:42:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:42:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:02,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:02,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:02,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:02,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:42:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:02,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:02,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:02,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:42:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 13:42:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:42:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:02,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:02,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:42:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:42:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:02,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:02,299 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 13:42:02,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366982730] [2020-10-13 13:42:02,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:02,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:42:02,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67189066] [2020-10-13 13:42:02,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:42:02,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:02,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:42:02,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:42:02,301 INFO L87 Difference]: Start difference. First operand 184530 states and 297549 transitions. Second operand 10 states. [2020-10-13 13:42:02,705 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:04,536 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:05,023 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:05,546 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:05,705 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:05,977 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:06,810 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:08,149 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-13 13:42:08,369 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:42:08,743 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:42:09,078 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:21,509 INFO L93 Difference]: Finished difference Result 529363 states and 857300 transitions. [2020-10-13 13:42:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:42:21,510 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-13 13:42:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:22,459 INFO L225 Difference]: With dead ends: 529363 [2020-10-13 13:42:22,459 INFO L226 Difference]: Without dead ends: 372419 [2020-10-13 13:42:22,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:42:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372419 states.