/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_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:40:31,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:40:31,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:40:31,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:40:31,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:40:31,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:40:31,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:40:31,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:40:31,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:40:31,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:40:31,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:40:31,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:40:31,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:40:31,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:40:31,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:40:31,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:40:31,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:40:31,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:40:31,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:40:31,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:40:31,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:40:31,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:40:31,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:40:31,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:40:31,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:40:31,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:40:31,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:40:31,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:40:31,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:40:31,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:40:31,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:40:31,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:40:31,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:40:31,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:40:31,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:40:31,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:40:31,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:40:31,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:40:31,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:40:31,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:40:31,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:40:31,800 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 13:40:31,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:40:31,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:40:31,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:40:31,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:40:31,824 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:40:31,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:40:31,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:40:31,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:40:31,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:40:31,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:40:31,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:40:31,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:40:31,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:40:31,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:40:31,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:40:31,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:40:31,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:40:31,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:40:31,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:40:31,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:40:31,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:40:31,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:40:31,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:40:31,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:40:31,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:40:31,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:40:31,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:40:31,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:40:31,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:40:31,829 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 13:40:32,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:40:32,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:40:32,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:40:32,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:40:32,148 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:40:32,148 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:32,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/002dccae1/c52be9d9ef054a888336e5f7595028ed/FLAG5804aa582 [2020-10-13 13:40:32,751 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:40:32,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:32,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/002dccae1/c52be9d9ef054a888336e5f7595028ed/FLAG5804aa582 [2020-10-13 13:40:33,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/002dccae1/c52be9d9ef054a888336e5f7595028ed [2020-10-13 13:40:33,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:40:33,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:40:33,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:40:33,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:40:33,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:40:33,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33, skipping insertion in model container [2020-10-13 13:40:33,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:40:33,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:40:33,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:40:33,672 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:40:33,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:40:33,775 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:40:33,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33 WrapperNode [2020-10-13 13:40:33,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:40:33,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:40:33,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:40:33,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:40:33,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (1/1) ... [2020-10-13 13:40:33,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:40:33,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:40:33,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:40:33,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:40:33,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (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 13:40:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:40:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:40:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:40:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:40:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:40:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:40:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:40:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:40:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:40:35,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:40:35,255 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:40:35,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:35 BoogieIcfgContainer [2020-10-13 13:40:35,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:40:35,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:40:35,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:40:35,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:40:35,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:40:33" (1/3) ... [2020-10-13 13:40:35,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:35, skipping insertion in model container [2020-10-13 13:40:35,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:40:33" (2/3) ... [2020-10-13 13:40:35,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2235693a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:40:35, skipping insertion in model container [2020-10-13 13:40:35,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:40:35" (3/3) ... [2020-10-13 13:40:35,270 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2020-10-13 13:40:35,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:40:35,288 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:40:35,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:40:35,328 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:40:35,328 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:40:35,329 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:40:35,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:40:35,329 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:40:35,329 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:40:35,329 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:40:35,330 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:40:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-10-13 13:40:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:40:35,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:35,374 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 13:40:35,375 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:35,382 INFO L82 PathProgramCache]: Analyzing trace with hash -972412155, now seen corresponding path program 1 times [2020-10-13 13:40:35,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:35,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810145556] [2020-10-13 13:40:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:35,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:40:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-10-13 13:40:36,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:40:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:40:37,003 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:37,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:37,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 13:40:37,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:40:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 13:40:37,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:40:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:40:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:40:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:40:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:37,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:40:37,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:37,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:40:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:40:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:40:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:37,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:37,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:37,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:40:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:37,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:40:37,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:37,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:37,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:40:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:37,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:37,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:37,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:37,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:37,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:40:37,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810145556] [2020-10-13 13:40:37,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:37,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:40:37,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675608217] [2020-10-13 13:40:37,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:40:37,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:40:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:40:37,491 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 7 states. [2020-10-13 13:40:38,368 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:38,812 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:39,264 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:39,803 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:40,424 INFO L93 Difference]: Finished difference Result 540 states and 915 transitions. [2020-10-13 13:40:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:40:40,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-13 13:40:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:40,461 INFO L225 Difference]: With dead ends: 540 [2020-10-13 13:40:40,461 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 13:40:40,468 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 13:40:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 13:40:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 352. [2020-10-13 13:40:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-10-13 13:40:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 607 transitions. [2020-10-13 13:40:40,634 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 607 transitions. Word has length 108 [2020-10-13 13:40:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:40,636 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 607 transitions. [2020-10-13 13:40:40,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:40:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 607 transitions. [2020-10-13 13:40:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 13:40:40,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:40,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:40,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:40:40,649 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:40,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:40,651 INFO L82 PathProgramCache]: Analyzing trace with hash -78925817, now seen corresponding path program 1 times [2020-10-13 13:40:40,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:40,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340872219] [2020-10-13 13:40:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:40,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:41,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:41,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:40:41,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-13 13:40:41,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:41,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:40:41,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:40:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:40:41,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:42,401 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:42,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:42,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:42,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:42,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:42,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:40:42,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:42,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:42,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:42,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:42,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:40:42,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-13 13:40:42,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:42,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:40:42,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:40:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:42,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:42,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:42,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:42,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:40:42,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:40:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:42,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:40:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:43,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:43,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:43,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:43,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:43,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:40:43,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:43,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:43,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:43,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 13:40:43,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:40:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:43,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:43,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:43,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:43,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:40:43,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:40:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:43,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:43,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:43,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:43,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:40:43,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:43,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:40:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:43,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:43,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:43,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:40:43,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:43,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:43,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:40:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:43,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:43,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:43,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:43,282 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 13:40:43,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340872219] [2020-10-13 13:40:43,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:43,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:40:43,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937374989] [2020-10-13 13:40:43,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:40:43,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:40:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:40:43,287 INFO L87 Difference]: Start difference. First operand 352 states and 607 transitions. Second operand 13 states. [2020-10-13 13:40:45,820 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:46,225 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:40:46,665 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-13 13:40:47,085 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-13 13:40:48,755 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:49,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:40:49,887 INFO L93 Difference]: Finished difference Result 538 states and 907 transitions. [2020-10-13 13:40:49,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:40:49,888 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-13 13:40:49,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:40:49,891 INFO L225 Difference]: With dead ends: 538 [2020-10-13 13:40:49,891 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 13:40:49,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:40:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 13:40:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 352. [2020-10-13 13:40:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-10-13 13:40:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 561 transitions. [2020-10-13 13:40:49,937 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 561 transitions. Word has length 108 [2020-10-13 13:40:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:40:49,939 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 561 transitions. [2020-10-13 13:40:49,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:40:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 561 transitions. [2020-10-13 13:40:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:40:49,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:40:49,943 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] [2020-10-13 13:40:49,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:40:49,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:40:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:40:49,944 INFO L82 PathProgramCache]: Analyzing trace with hash 176972737, now seen corresponding path program 1 times [2020-10-13 13:40:49,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:40:49,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266028088] [2020-10-13 13:40:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:40:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:50,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:52,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:40:55,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:40:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-13 13:40:55,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:55,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:40:55,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:40:55,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:55,458 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:40:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:40:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:40:55,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:40:55,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:55,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:40:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:40:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 13:40:55,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:40:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:40:55,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:40:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:40:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:40:55,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:40:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:40:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:40:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:40:55,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:40:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:55,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:40:55,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:40:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:40:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:40:55,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:55,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:40:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:55,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:40:55,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:40:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:55,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:55,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:40:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:55,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:56,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:56,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:40:56,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:40:56,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:40:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:40:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:40:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:40:56,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:40:56,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:40:56,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:40:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:40:56,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:40:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:40:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:40:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:40:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:40:56,072 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 13:40:56,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266028088] [2020-10-13 13:40:56,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:40:56,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:40:56,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989651750] [2020-10-13 13:40:56,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:40:56,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:40:56,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:40:56,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:40:56,078 INFO L87 Difference]: Start difference. First operand 352 states and 561 transitions. Second operand 10 states. [2020-10-13 13:40:56,523 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:40:58,362 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:40:58,616 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:40:58,913 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:59,561 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:40:59,775 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:00,321 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:00,501 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:01,453 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-13 13:41:01,875 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:41:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:02,099 INFO L93 Difference]: Finished difference Result 711 states and 1143 transitions. [2020-10-13 13:41:02,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:41:02,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-13 13:41:02,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:02,107 INFO L225 Difference]: With dead ends: 711 [2020-10-13 13:41:02,108 INFO L226 Difference]: Without dead ends: 567 [2020-10-13 13:41:02,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:41:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-13 13:41:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 487. [2020-10-13 13:41:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-10-13 13:41:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 772 transitions. [2020-10-13 13:41:02,165 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 772 transitions. Word has length 153 [2020-10-13 13:41:02,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:02,166 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 772 transitions. [2020-10-13 13:41:02,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:41:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 772 transitions. [2020-10-13 13:41:02,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-13 13:41:02,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:02,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:41:02,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:41:02,171 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:02,171 INFO L82 PathProgramCache]: Analyzing trace with hash -126046197, now seen corresponding path program 1 times [2020-10-13 13:41:02,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:02,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521441611] [2020-10-13 13:41:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:02,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:02,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:02,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:03,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:06,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:07,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:07,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 13:41:07,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:41:07,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:41:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 13:41:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:07,704 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:07,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:07,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:07,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:07,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:07,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:41:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:07,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:07,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:07,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:07,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:07,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 13:41:07,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:07,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:41:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:07,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:07,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:07,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:07,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:07,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:07,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:07,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:07,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:07,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:07,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:41:07,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:07,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:07,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:07,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:08,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:08,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:41:08,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:08,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:08,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:41:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:08,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:08,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:08,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:08,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:08,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:41:08,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:08,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:41:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:08,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:41:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-13 13:41:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:08,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:08,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:41:08,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:08,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:41:08,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:08,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:08,194 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 13:41:08,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521441611] [2020-10-13 13:41:08,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:08,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:41:08,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317809649] [2020-10-13 13:41:08,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:41:08,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:08,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:41:08,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:41:08,198 INFO L87 Difference]: Start difference. First operand 487 states and 772 transitions. Second operand 10 states. [2020-10-13 13:41:08,570 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:10,370 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:11,194 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:11,521 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:12,245 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:13,470 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:14,049 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:41:14,195 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:41:14,401 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:14,440 INFO L93 Difference]: Finished difference Result 1179 states and 1878 transitions. [2020-10-13 13:41:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:41:14,442 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-13 13:41:14,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:14,448 INFO L225 Difference]: With dead ends: 1179 [2020-10-13 13:41:14,448 INFO L226 Difference]: Without dead ends: 900 [2020-10-13 13:41:14,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:41:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-13 13:41:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 748. [2020-10-13 13:41:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-10-13 13:41:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1183 transitions. [2020-10-13 13:41:14,521 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1183 transitions. Word has length 156 [2020-10-13 13:41:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:14,522 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 1183 transitions. [2020-10-13 13:41:14,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:41:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1183 transitions. [2020-10-13 13:41:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-13 13:41:14,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:14,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:41:14,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:41:14,526 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:14,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:14,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2024384791, now seen corresponding path program 1 times [2020-10-13 13:41:14,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:14,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071072465] [2020-10-13 13:41:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:14,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:15,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:19,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:19,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:41:19,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 13:41:19,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:41:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:41:19,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:41:19,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,031 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:20,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:41:20,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-13 13:41:20,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:41:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 13:41:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:20,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:20,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:20,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:41:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:41:20,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:41:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:20,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:41:20,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:20,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:41:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:20,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:41:20,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:41:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:20,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:20,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:20,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:41:20,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:41:20,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:41:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:41:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:20,832 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 13:41:20,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071072465] [2020-10-13 13:41:20,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:20,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:41:20,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458427212] [2020-10-13 13:41:20,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:41:20,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:20,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:41:20,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:41:20,835 INFO L87 Difference]: Start difference. First operand 748 states and 1183 transitions. Second operand 16 states. [2020-10-13 13:41:21,272 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:23,347 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:41:23,772 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:24,144 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:41:24,452 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:24,787 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:25,080 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:25,603 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:25,940 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:26,183 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:26,351 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:26,518 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:27,043 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:27,307 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:27,487 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:27,842 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:41:28,082 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:28,580 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:41:28,820 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:29,183 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:29,404 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:29,910 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:30,314 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:30,493 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:31,056 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-13 13:41:31,446 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-13 13:41:32,755 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:33,149 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:33,304 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:33,615 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:33,769 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:34,027 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:34,182 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:34,599 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:41:34,990 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:35,287 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:35,681 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:36,186 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:36,352 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:36,704 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:36,871 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:37,380 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:37,572 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:41:38,233 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:38,684 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:41:38,844 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:41:39,162 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:39,326 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:41:39,772 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:41:40,053 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:41:40,777 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:41:41,274 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-10-13 13:41:41,454 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-13 13:41:41,790 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:41:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:41:44,149 INFO L93 Difference]: Finished difference Result 5684 states and 9239 transitions. [2020-10-13 13:41:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-13 13:41:44,150 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 159 [2020-10-13 13:41:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:41:44,187 INFO L225 Difference]: With dead ends: 5684 [2020-10-13 13:41:44,187 INFO L226 Difference]: Without dead ends: 5144 [2020-10-13 13:41:44,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1321, Invalid=5159, Unknown=0, NotChecked=0, Total=6480 [2020-10-13 13:41:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2020-10-13 13:41:44,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 3960. [2020-10-13 13:41:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3960 states. [2020-10-13 13:41:44,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 6294 transitions. [2020-10-13 13:41:44,554 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 6294 transitions. Word has length 159 [2020-10-13 13:41:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:41:44,554 INFO L479 AbstractCegarLoop]: Abstraction has 3960 states and 6294 transitions. [2020-10-13 13:41:44,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:41:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 6294 transitions. [2020-10-13 13:41:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 13:41:44,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:41:44,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:44,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:41:44,560 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:41:44,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:41:44,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2114635013, now seen corresponding path program 1 times [2020-10-13 13:41:44,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:41:44,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592983589] [2020-10-13 13:41:44,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:41:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:44,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:44,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:44,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:44,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:49,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:49,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-13 13:41:49,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:41:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:50,176 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:41:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:41:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:41:50,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:41:50,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:41:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:41:50,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:41:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:41:50,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-13 13:41:50,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:41:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:41:50,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:41:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:41:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:41:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:41:50,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:41:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:50,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:41:50,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:41:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:41:50,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:41:50,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:41:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:41:50,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:41:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:41:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:41:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:50,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:41:50,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:50,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:41:50,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:41:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:50,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:41:50,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:41:50,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:41:50,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:41:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:41:50,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:41:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:41:50,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:41:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:41:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:41:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:41:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:41:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:41:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:41:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:41:50,956 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 13:41:50,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592983589] [2020-10-13 13:41:50,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:41:50,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:41:50,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366855927] [2020-10-13 13:41:50,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:41:50,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:41:50,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:41:50,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:41:50,959 INFO L87 Difference]: Start difference. First operand 3960 states and 6294 transitions. Second operand 11 states. [2020-10-13 13:41:51,369 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:53,203 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:41:53,502 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:41:53,954 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:54,195 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:54,379 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:54,509 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:55,402 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:55,799 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:55,961 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:41:56,798 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:41:57,276 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:41:58,463 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:41:58,842 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:41:59,776 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:41:59,947 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-13 13:42:00,200 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 127 [2020-10-13 13:42:00,509 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2020-10-13 13:42:01,357 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:01,557 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:01,746 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:02,651 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:02,815 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:03,557 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:03,728 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:04,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:04,662 INFO L93 Difference]: Finished difference Result 13587 states and 21801 transitions. [2020-10-13 13:42:04,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:42:04,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 160 [2020-10-13 13:42:04,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:04,712 INFO L225 Difference]: With dead ends: 13587 [2020-10-13 13:42:04,713 INFO L226 Difference]: Without dead ends: 9835 [2020-10-13 13:42:04,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:42:04,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9835 states. [2020-10-13 13:42:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9835 to 7747. [2020-10-13 13:42:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7747 states. [2020-10-13 13:42:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7747 states to 7747 states and 12345 transitions. [2020-10-13 13:42:05,244 INFO L78 Accepts]: Start accepts. Automaton has 7747 states and 12345 transitions. Word has length 160 [2020-10-13 13:42:05,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:05,245 INFO L479 AbstractCegarLoop]: Abstraction has 7747 states and 12345 transitions. [2020-10-13 13:42:05,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:42:05,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7747 states and 12345 transitions. [2020-10-13 13:42:05,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 13:42:05,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:05,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:42:05,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:42:05,252 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:05,252 INFO L82 PathProgramCache]: Analyzing trace with hash 688585181, now seen corresponding path program 1 times [2020-10-13 13:42:05,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:05,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144909419] [2020-10-13 13:42:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:05,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:05,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:05,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:05,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:06,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:10,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:10,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 13:42:10,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:42:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 13:42:10,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-13 13:42:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:42:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:10,827 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:10,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:10,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:10,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:10,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:42:10,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:10,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:11,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-13 13:42:11,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 13:42:11,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:11,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:11,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:11,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:11,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:11,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:42:11,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:11,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:11,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:42:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 13:42:11,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:42:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:42:11,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:42:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:11,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:11,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:42:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:11,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:42:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 13:42:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:11,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:11,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:42:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:11,539 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 13:42:11,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144909419] [2020-10-13 13:42:11,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:11,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:42:11,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002245910] [2020-10-13 13:42:11,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:42:11,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:11,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:42:11,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:42:11,542 INFO L87 Difference]: Start difference. First operand 7747 states and 12345 transitions. Second operand 10 states. [2020-10-13 13:42:11,937 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:13,914 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:14,630 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:42:14,885 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:16,434 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:42:16,676 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:42:16,898 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:17,349 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:18,350 INFO L93 Difference]: Finished difference Result 18744 states and 30124 transitions. [2020-10-13 13:42:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:42:18,357 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-10-13 13:42:18,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:18,422 INFO L225 Difference]: With dead ends: 18744 [2020-10-13 13:42:18,423 INFO L226 Difference]: Without dead ends: 14268 [2020-10-13 13:42:18,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:42:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14268 states. [2020-10-13 13:42:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14268 to 11377. [2020-10-13 13:42:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11377 states. [2020-10-13 13:42:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11377 states to 11377 states and 18062 transitions. [2020-10-13 13:42:19,221 INFO L78 Accepts]: Start accepts. Automaton has 11377 states and 18062 transitions. Word has length 161 [2020-10-13 13:42:19,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:19,221 INFO L479 AbstractCegarLoop]: Abstraction has 11377 states and 18062 transitions. [2020-10-13 13:42:19,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:42:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 11377 states and 18062 transitions. [2020-10-13 13:42:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 13:42:19,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:19,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:42:19,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:42:19,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1626914994, now seen corresponding path program 1 times [2020-10-13 13:42:19,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:19,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982227994] [2020-10-13 13:42:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:19,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:19,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:19,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:24,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:24,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 13:42:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:42:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:24,736 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:24,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:24,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:24,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:24,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:24,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:42:24,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:24,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:24,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:42:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:24,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:24,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:24,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:24,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:24,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:42:24,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:24,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:25,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:25,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:25,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:42:25,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:42:25,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:42:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:25,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:25,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:25,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:25,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:42:25,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:25,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:42:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:25,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:42:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:25,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:25,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:42:25,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:42:25,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:42:25,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:42:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:25,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:25,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:25,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:25,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:42:25,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:25,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:25,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:42:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:42:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:25,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:25,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:25,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:42:25,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:25,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:42:25,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:42:25,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:42:25,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:25,332 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 13:42:25,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982227994] [2020-10-13 13:42:25,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:25,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:42:25,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554397566] [2020-10-13 13:42:25,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:42:25,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:25,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:42:25,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:42:25,335 INFO L87 Difference]: Start difference. First operand 11377 states and 18062 transitions. Second operand 11 states. [2020-10-13 13:42:25,735 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:27,680 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:42:27,949 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:28,431 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:42:28,697 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:29,085 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:30,009 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:30,293 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:30,929 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:31,724 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:42:32,152 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:42:32,717 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:32,851 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:42:33,479 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:34,127 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:42:34,293 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:42:34,632 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-13 13:42:35,027 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:42:35,311 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:42:35,633 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:36,660 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:37,965 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:42:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:38,140 INFO L93 Difference]: Finished difference Result 45361 states and 72609 transitions. [2020-10-13 13:42:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:42:38,141 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 161 [2020-10-13 13:42:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:38,301 INFO L225 Difference]: With dead ends: 45361 [2020-10-13 13:42:38,304 INFO L226 Difference]: Without dead ends: 34242 [2020-10-13 13:42:38,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:42:38,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34242 states. [2020-10-13 13:42:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34242 to 27277. [2020-10-13 13:42:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27277 states. [2020-10-13 13:42:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27277 states to 27277 states and 43220 transitions. [2020-10-13 13:42:41,147 INFO L78 Accepts]: Start accepts. Automaton has 27277 states and 43220 transitions. Word has length 161 [2020-10-13 13:42:41,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:41,148 INFO L479 AbstractCegarLoop]: Abstraction has 27277 states and 43220 transitions. [2020-10-13 13:42:41,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:42:41,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27277 states and 43220 transitions. [2020-10-13 13:42:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 13:42:41,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:41,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:42:41,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:42:41,153 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:41,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:41,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1738744547, now seen corresponding path program 1 times [2020-10-13 13:42:41,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:41,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484270715] [2020-10-13 13:42:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:41,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:41,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:41,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:41,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:41,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:43,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:42:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,631 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:42:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:42:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:42:46,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:42:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:42:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:42:46,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 13:42:46,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 13:42:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:42:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:42:46,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:42:46,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:42:46,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:42:46,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:42:46,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:42:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 13:42:46,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:42:46,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:42:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:42:46,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:42:46,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 13:42:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:42:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:46,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:42:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:46,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:42:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:47,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:47,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:47,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:42:47,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:42:47,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:42:47,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:47,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 13:42:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:47,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:47,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:42:47,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:42:47,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:42:47,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:42:47,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:42:47,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:42:47,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:42:47,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:42:47,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:42:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:42:47,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484270715] [2020-10-13 13:42:47,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:42:47,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:42:47,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327110942] [2020-10-13 13:42:47,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:42:47,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:42:47,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:42:47,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:42:47,073 INFO L87 Difference]: Start difference. First operand 27277 states and 43220 transitions. Second operand 10 states. [2020-10-13 13:42:47,520 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:42:49,474 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:49,638 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:42:49,955 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:50,209 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:42:51,198 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-13 13:42:51,432 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:42:51,616 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:52,084 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:52,485 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:42:54,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:42:54,752 INFO L93 Difference]: Finished difference Result 77680 states and 124155 transitions. [2020-10-13 13:42:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:42:54,753 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-10-13 13:42:54,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:42:54,956 INFO L225 Difference]: With dead ends: 77680 [2020-10-13 13:42:54,956 INFO L226 Difference]: Without dead ends: 55608 [2020-10-13 13:42:55,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:42:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55608 states. [2020-10-13 13:42:57,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55608 to 44707. [2020-10-13 13:42:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44707 states. [2020-10-13 13:42:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44707 states to 44707 states and 70283 transitions. [2020-10-13 13:42:57,267 INFO L78 Accepts]: Start accepts. Automaton has 44707 states and 70283 transitions. Word has length 161 [2020-10-13 13:42:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:42:57,267 INFO L479 AbstractCegarLoop]: Abstraction has 44707 states and 70283 transitions. [2020-10-13 13:42:57,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:42:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 44707 states and 70283 transitions. [2020-10-13 13:42:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-13 13:42:57,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:42:57,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:42:57,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:42:57,270 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:42:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:42:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash 555818770, now seen corresponding path program 1 times [2020-10-13 13:42:57,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:42:57,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797156280] [2020-10-13 13:42:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:42:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:42:57,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:57,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:57,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:57,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:58,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:42:58,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 13:43:02,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:43:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,695 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:43:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:43:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:43:02,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:43:02,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:43:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:43:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:43:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:43:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:43:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:43:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:43:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:02,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:43:02,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:43:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:02,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:43:02,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:02,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:02,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:02,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:43:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:02,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:02,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:03,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:43:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:43:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:43:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:03,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:43:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:03,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:43:03,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:43:03,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:03,133 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 13:43:03,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797156280] [2020-10-13 13:43:03,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:43:03,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:43:03,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009746657] [2020-10-13 13:43:03,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:43:03,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:43:03,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:43:03,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:43:03,135 INFO L87 Difference]: Start difference. First operand 44707 states and 70283 transitions. Second operand 11 states. [2020-10-13 13:43:03,502 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:43:05,474 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-13 13:43:06,027 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:06,311 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:06,542 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:06,964 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:07,118 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:07,520 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:43:07,660 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:08,677 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-13 13:43:09,067 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-13 13:43:09,600 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:43:09,892 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:10,038 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:10,238 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:10,892 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:43:11,299 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:11,446 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:11,651 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:43:12,340 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:43:12,778 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:43:13,073 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 127 [2020-10-13 13:43:13,454 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-10-13 13:43:14,171 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:14,341 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:43:14,508 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:43:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:43:21,536 INFO L93 Difference]: Finished difference Result 237239 states and 376819 transitions. [2020-10-13 13:43:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:43:21,537 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 162 [2020-10-13 13:43:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:43:22,112 INFO L225 Difference]: With dead ends: 237239 [2020-10-13 13:43:22,112 INFO L226 Difference]: Without dead ends: 192763 [2020-10-13 13:43:22,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:43:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192763 states. [2020-10-13 13:43:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192763 to 154395. [2020-10-13 13:43:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154395 states. [2020-10-13 13:43:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154395 states to 154395 states and 242388 transitions. [2020-10-13 13:43:32,285 INFO L78 Accepts]: Start accepts. Automaton has 154395 states and 242388 transitions. Word has length 162 [2020-10-13 13:43:32,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:43:32,286 INFO L479 AbstractCegarLoop]: Abstraction has 154395 states and 242388 transitions. [2020-10-13 13:43:32,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:43:32,286 INFO L276 IsEmpty]: Start isEmpty. Operand 154395 states and 242388 transitions. [2020-10-13 13:43:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 13:43:32,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:43:32,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:43:32,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:43:32,289 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:43:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:43:32,289 INFO L82 PathProgramCache]: Analyzing trace with hash -550596219, now seen corresponding path program 1 times [2020-10-13 13:43:32,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:43:32,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571877989] [2020-10-13 13:43:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:43:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:32,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:35,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:35,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:43:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:43:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 13:43:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,743 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-13 13:43:37,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:43:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:43:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:43:37,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:43:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:43:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:43:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:43:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:43:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:43:37,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:43:37,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:43:37,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:43:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:37,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:43:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:37,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:43:37,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:43:37,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:43:37,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:43:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:37,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:37,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:37,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:43:37,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:43:37,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:43:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:38,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:38,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:38,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:43:38,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:38,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:43:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:43:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:43:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:43:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 13:43:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:43:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:43:38,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:43:38,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:43:38,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:43:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:43:38,096 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 13:43:38,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571877989] [2020-10-13 13:43:38,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:43:38,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:43:38,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985880890] [2020-10-13 13:43:38,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:43:38,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:43:38,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:43:38,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:43:38,097 INFO L87 Difference]: Start difference. First operand 154395 states and 242388 transitions. Second operand 10 states. [2020-10-13 13:43:38,480 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-13 13:43:40,693 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:40,993 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:41,227 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:43:41,484 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:43:41,754 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:42,735 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:43:43,839 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-13 13:43:44,003 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-13 13:43:44,222 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:43:53,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:43:53,513 INFO L93 Difference]: Finished difference Result 391314 states and 615396 transitions. [2020-10-13 13:43:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:43:53,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-13 13:43:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:43:54,211 INFO L225 Difference]: With dead ends: 391314 [2020-10-13 13:43:54,212 INFO L226 Difference]: Without dead ends: 237150 [2020-10-13 13:43:54,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:43:54,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237150 states.