/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:26:15,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:26:15,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:26:15,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:26:15,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:26:15,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:26:15,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:26:15,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:26:15,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:26:15,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:26:15,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:26:15,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:26:15,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:26:15,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:26:15,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:26:15,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:26:15,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:26:15,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:26:15,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:26:15,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:26:15,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:26:15,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:26:15,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:26:15,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:26:15,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:26:15,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:26:15,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:26:15,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:26:15,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:26:15,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:26:15,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:26:15,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:26:15,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:26:15,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:26:15,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:26:15,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:26:15,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:26:15,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:26:15,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:26:15,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:26:15,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:26:15,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:26:15,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:26:15,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:26:15,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:26:15,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:26:15,815 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:26:15,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:26:15,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:26:15,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:26:15,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:26:15,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:26:15,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:26:15,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:26:15,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:26:15,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:26:15,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:26:15,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:26:15,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:26:15,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:26:15,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:26:15,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:26:15,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:26:15,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:26:15,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:26:15,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:26:15,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:26:16,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:26:16,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:26:16,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:26:16,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:26:16,132 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:26:16,133 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:26:16,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbe8e1e1/52466febd8e2449cb6b659c018d32a68/FLAGd2adaae6d [2020-10-15 02:26:16,773 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:26:16,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:26:16,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbe8e1e1/52466febd8e2449cb6b659c018d32a68/FLAGd2adaae6d [2020-10-15 02:26:16,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbe8e1e1/52466febd8e2449cb6b659c018d32a68 [2020-10-15 02:26:16,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:26:16,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:26:16,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:26:16,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:26:16,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:26:16,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:26:16" (1/1) ... [2020-10-15 02:26:16,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf7d031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:16, skipping insertion in model container [2020-10-15 02:26:16,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:26:16" (1/1) ... [2020-10-15 02:26:16,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:26:17,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:26:17,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:26:17,587 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:26:17,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:26:17,777 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:26:17,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17 WrapperNode [2020-10-15 02:26:17,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:26:17,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:26:17,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:26:17,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:26:17,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... [2020-10-15 02:26:17,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:26:17,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:26:17,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:26:17,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:26:17,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:26:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:26:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:26:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:26:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:26:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:26:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:26:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:26:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:26:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:26:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:26:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:26:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:26:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:26:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:26:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:26:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:26:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:26:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:26:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:26:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:26:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:26:20,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:26:20,330 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:26:20,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:26:20 BoogieIcfgContainer [2020-10-15 02:26:20,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:26:20,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:26:20,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:26:20,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:26:20,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:26:16" (1/3) ... [2020-10-15 02:26:20,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f11f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:26:20, skipping insertion in model container [2020-10-15 02:26:20,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:26:17" (2/3) ... [2020-10-15 02:26:20,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f11f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:26:20, skipping insertion in model container [2020-10-15 02:26:20,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:26:20" (3/3) ... [2020-10-15 02:26:20,349 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5_overflow.ufo.UNBOUNDED.pals.c [2020-10-15 02:26:20,359 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:26:20,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:26:20,383 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:26:20,410 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:26:20,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:26:20,410 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:26:20,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:26:20,411 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:26:20,411 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:26:20,411 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:26:20,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:26:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states. [2020-10-15 02:26:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-15 02:26:20,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:20,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:20,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:20,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1284517621, now seen corresponding path program 1 times [2020-10-15 02:26:20,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:20,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894821441] [2020-10-15 02:26:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:21,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:22,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:22,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-15 02:26:22,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:22,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-10-15 02:26:22,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:22,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-15 02:26:22,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:22,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:26:23,021 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:26:23,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:23,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:26:23,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:26:23,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-15 02:26:23,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:26:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:23,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:26:23,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:26:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:26:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:26:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:26:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:26:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:26:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:26:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-15 02:26:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:26:23,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-15 02:26:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:26:23,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:23,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-15 02:26:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:23,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:23,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:23,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:23,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:23,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-15 02:26:23,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:23,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:23,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:26:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:26:23,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894821441] [2020-10-15 02:26:23,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:23,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:26:23,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829595841] [2020-10-15 02:26:23,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:26:23,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:23,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:26:23,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:26:23,931 INFO L87 Difference]: Start difference. First operand 737 states. Second operand 8 states. [2020-10-15 02:26:26,758 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:27,351 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:27,953 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:28,499 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:29,064 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:29,893 INFO L93 Difference]: Finished difference Result 964 states and 1709 transitions. [2020-10-15 02:26:29,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:26:29,895 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-15 02:26:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:29,922 INFO L225 Difference]: With dead ends: 964 [2020-10-15 02:26:29,922 INFO L226 Difference]: Without dead ends: 782 [2020-10-15 02:26:29,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:26:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-15 02:26:30,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 732. [2020-10-15 02:26:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-15 02:26:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1326 transitions. [2020-10-15 02:26:30,107 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1326 transitions. Word has length 182 [2020-10-15 02:26:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:30,108 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 1326 transitions. [2020-10-15 02:26:30,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:26:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1326 transitions. [2020-10-15 02:26:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-15 02:26:30,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:30,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:30,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:26:30,117 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:30,118 INFO L82 PathProgramCache]: Analyzing trace with hash 931429239, now seen corresponding path program 1 times [2020-10-15 02:26:30,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:30,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232939939] [2020-10-15 02:26:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:30,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:32,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:32,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-15 02:26:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2364 [2020-10-15 02:26:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:32,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:26:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-15 02:26:32,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:26:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:33,512 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:26:33,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:33,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:33,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:33,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:33,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:26:33,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:33,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:33,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:26:34,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-15 02:26:34,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:26:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-15 02:26:34,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:26:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:34,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:26:34,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:26:34,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:34,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:26:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:26:34,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:26:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:26:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:26:34,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:26:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:26:34,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:34,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-15 02:26:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:34,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-15 02:26:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-15 02:26:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:34,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:34,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:34,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:34,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:34,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:34,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:34,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:26:34,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232939939] [2020-10-15 02:26:34,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:34,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:26:34,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675393844] [2020-10-15 02:26:34,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:26:34,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:34,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:26:34,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:26:34,847 INFO L87 Difference]: Start difference. First operand 732 states and 1326 transitions. Second operand 14 states. [2020-10-15 02:26:42,327 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-15 02:26:42,983 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-15 02:26:43,729 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-15 02:26:44,378 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:26:45,396 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:46,015 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:46,654 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:47,275 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:47,888 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:26:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:26:48,654 INFO L93 Difference]: Finished difference Result 962 states and 1701 transitions. [2020-10-15 02:26:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:26:48,655 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-15 02:26:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:26:48,663 INFO L225 Difference]: With dead ends: 962 [2020-10-15 02:26:48,663 INFO L226 Difference]: Without dead ends: 782 [2020-10-15 02:26:48,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:26:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-15 02:26:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 732. [2020-10-15 02:26:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2020-10-15 02:26:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1266 transitions. [2020-10-15 02:26:48,782 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1266 transitions. Word has length 182 [2020-10-15 02:26:48,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:26:48,782 INFO L479 AbstractCegarLoop]: Abstraction has 732 states and 1266 transitions. [2020-10-15 02:26:48,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:26:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1266 transitions. [2020-10-15 02:26:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-15 02:26:48,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:26:48,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:26:48,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:26:48,788 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:26:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:26:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2064659172, now seen corresponding path program 1 times [2020-10-15 02:26:48,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:26:48,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786863077] [2020-10-15 02:26:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:26:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:49,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:49,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:54,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-15 02:26:54,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:26:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5165 [2020-10-15 02:26:54,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:54,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-15 02:26:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:26:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:54,900 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:26:54,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:26:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:54,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:54,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:26:54,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:26:54,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:54,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:26:54,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:26:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:26:55,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-15 02:26:55,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-15 02:26:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:26:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:26:55,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:55,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:26:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:26:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:26:55,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:26:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:26:55,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:26:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:26:55,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:26:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-15 02:26:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:55,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:26:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:26:55,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:26:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-15 02:26:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:26:55,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-15 02:26:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:26:55,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:55,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-15 02:26:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:26:55,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:26:55,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:26:55,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:26:55,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:26:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:26:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:26:55,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:26:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:26:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:26:55,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:26:55,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:26:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:26:56,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786863077] [2020-10-15 02:26:56,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:26:56,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:26:56,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932719245] [2020-10-15 02:26:56,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:26:56,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:26:56,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:26:56,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:26:56,068 INFO L87 Difference]: Start difference. First operand 732 states and 1266 transitions. Second operand 11 states. [2020-10-15 02:26:56,685 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:27:02,722 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:03,034 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-15 02:27:03,480 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:27:03,673 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:04,316 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:27:04,557 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:05,226 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:27:05,456 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:06,157 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:27:06,376 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:08,065 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-15 02:27:08,609 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:27:08,832 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-15 02:27:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:08,914 INFO L93 Difference]: Finished difference Result 1178 states and 1995 transitions. [2020-10-15 02:27:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:27:08,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-10-15 02:27:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:08,922 INFO L225 Difference]: With dead ends: 1178 [2020-10-15 02:27:08,922 INFO L226 Difference]: Without dead ends: 1004 [2020-10-15 02:27:08,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:27:08,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-15 02:27:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 896. [2020-10-15 02:27:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-10-15 02:27:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1529 transitions. [2020-10-15 02:27:09,077 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1529 transitions. Word has length 241 [2020-10-15 02:27:09,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:09,078 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1529 transitions. [2020-10-15 02:27:09,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:27:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1529 transitions. [2020-10-15 02:27:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-15 02:27:09,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:09,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:27:09,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:27:09,086 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:09,086 INFO L82 PathProgramCache]: Analyzing trace with hash -828531776, now seen corresponding path program 1 times [2020-10-15 02:27:09,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:09,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073193842] [2020-10-15 02:27:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:09,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:10,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:14,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:27:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-15 02:27:14,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:15,265 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:27:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:15,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:15,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:15,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:15,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:15,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:27:15,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:15,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:15,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:27:16,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-15 02:27:16,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:27:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:27:16,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:27:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:27:16,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:16,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:16,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:16,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:16,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:27:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:27:16,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:27:16,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:27:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:16,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-15 02:27:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:16,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:16,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:16,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:16,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:16,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-15 02:27:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:16,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:16,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:16,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:16,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-15 02:27:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:16,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:16,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:16,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:16,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-15 02:27:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:16,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:16,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-15 02:27:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:16,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:16,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:16,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:16,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:16,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:16,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073193842] [2020-10-15 02:27:16,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:16,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:27:16,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467376929] [2020-10-15 02:27:16,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:27:16,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:16,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:27:16,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:27:16,737 INFO L87 Difference]: Start difference. First operand 896 states and 1529 transitions. Second operand 11 states. [2020-10-15 02:27:17,381 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:27:18,062 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-15 02:27:18,883 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:27:21,349 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2020-10-15 02:27:36,847 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:27:37,225 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:37,521 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:38,147 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:38,681 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:39,157 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:39,352 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:40,213 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:40,803 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:41,075 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:41,665 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:42,193 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:42,442 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:43,049 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:27:43,558 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:27:43,775 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:27:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:45,225 INFO L93 Difference]: Finished difference Result 3519 states and 6000 transitions. [2020-10-15 02:27:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:27:45,226 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-15 02:27:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:45,241 INFO L225 Difference]: With dead ends: 3519 [2020-10-15 02:27:45,242 INFO L226 Difference]: Without dead ends: 2690 [2020-10-15 02:27:45,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:27:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2020-10-15 02:27:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2437. [2020-10-15 02:27:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2437 states. [2020-10-15 02:27:45,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4154 transitions. [2020-10-15 02:27:45,714 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4154 transitions. Word has length 245 [2020-10-15 02:27:45,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:45,714 INFO L479 AbstractCegarLoop]: Abstraction has 2437 states and 4154 transitions. [2020-10-15 02:27:45,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:27:45,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4154 transitions. [2020-10-15 02:27:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-15 02:27:45,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:45,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:27:45,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:27:45,724 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:45,725 INFO L82 PathProgramCache]: Analyzing trace with hash 258187293, now seen corresponding path program 1 times [2020-10-15 02:27:45,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:45,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435579320] [2020-10-15 02:27:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:46,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:46,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:49,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:50,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:50,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:50,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:27:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-15 02:27:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:51,849 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:27:51,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:51,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:27:51,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:51,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:51,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:52,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:52,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:52,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:27:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:27:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:27:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:27:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:27:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:27:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-15 02:27:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:52,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:52,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:52,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-15 02:27:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:52,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:52,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:52,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:52,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-15 02:27:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:52,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-15 02:27:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:52,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:52,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:52,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:52,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-15 02:27:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:52,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:52,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:52,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:52,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:52,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:52,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:52,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:52,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:52,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435579320] [2020-10-15 02:27:52,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:52,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:27:52,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389467875] [2020-10-15 02:27:52,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:27:52,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:52,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:27:52,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:27:52,981 INFO L87 Difference]: Start difference. First operand 2437 states and 4154 transitions. Second operand 11 states. [2020-10-15 02:27:53,657 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:27:54,344 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-15 02:27:55,338 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:27:57,570 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2020-10-15 02:28:13,213 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:28:13,603 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:13,875 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:14,170 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:15,150 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:15,469 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:15,892 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:16,542 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:16,996 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:17,458 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:18,054 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:18,487 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:18,911 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:19,514 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:19,947 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:20,316 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:21,772 INFO L93 Difference]: Finished difference Result 9301 states and 15809 transitions. [2020-10-15 02:28:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:28:21,773 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-10-15 02:28:21,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:21,806 INFO L225 Difference]: With dead ends: 9301 [2020-10-15 02:28:21,806 INFO L226 Difference]: Without dead ends: 7005 [2020-10-15 02:28:21,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:28:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7005 states. [2020-10-15 02:28:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 6479. [2020-10-15 02:28:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6479 states. [2020-10-15 02:28:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6479 states to 6479 states and 10992 transitions. [2020-10-15 02:28:22,968 INFO L78 Accepts]: Start accepts. Automaton has 6479 states and 10992 transitions. Word has length 245 [2020-10-15 02:28:22,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:22,969 INFO L479 AbstractCegarLoop]: Abstraction has 6479 states and 10992 transitions. [2020-10-15 02:28:22,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:28:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6479 states and 10992 transitions. [2020-10-15 02:28:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-15 02:28:22,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:22,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:28:22,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:28:22,989 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:22,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1638990498, now seen corresponding path program 1 times [2020-10-15 02:28:22,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:22,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206779505] [2020-10-15 02:28:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:23,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:23,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:27,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:27,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:27,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:28:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-15 02:28:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:28,883 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:28:28,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:29,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:29,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:28:29,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:28:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:28:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-15 02:28:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:29,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:29,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:29,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-15 02:28:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:29,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-15 02:28:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:29,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:29,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:29,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-15 02:28:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:29,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:29,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-15 02:28:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:29,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:29,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:29,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:29,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:29,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206779505] [2020-10-15 02:28:29,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:29,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:28:29,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792609004] [2020-10-15 02:28:29,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:28:29,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:29,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:28:29,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:28:29,838 INFO L87 Difference]: Start difference. First operand 6479 states and 10992 transitions. Second operand 11 states. [2020-10-15 02:28:30,534 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:28:31,246 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-15 02:28:32,548 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:28:33,905 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2020-10-15 02:28:53,244 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:28:53,677 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:53,971 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:54,597 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:55,348 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:55,682 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:55,971 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:56,657 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:57,189 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:57,556 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:58,357 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:28:58,815 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:28:59,144 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:28:59,887 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:00,327 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:00,603 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:02,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:02,214 INFO L93 Difference]: Finished difference Result 25505 states and 43238 transitions. [2020-10-15 02:29:02,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:29:02,216 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-15 02:29:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:02,283 INFO L225 Difference]: With dead ends: 25505 [2020-10-15 02:29:02,283 INFO L226 Difference]: Without dead ends: 19245 [2020-10-15 02:29:02,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:29:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19245 states. [2020-10-15 02:29:05,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19245 to 18133. [2020-10-15 02:29:05,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18133 states. [2020-10-15 02:29:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18133 states to 18133 states and 30627 transitions. [2020-10-15 02:29:05,214 INFO L78 Accepts]: Start accepts. Automaton has 18133 states and 30627 transitions. Word has length 246 [2020-10-15 02:29:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:05,214 INFO L479 AbstractCegarLoop]: Abstraction has 18133 states and 30627 transitions. [2020-10-15 02:29:05,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:29:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 18133 states and 30627 transitions. [2020-10-15 02:29:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-15 02:29:05,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:05,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:29:05,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:29:05,253 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:05,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:05,254 INFO L82 PathProgramCache]: Analyzing trace with hash -873866201, now seen corresponding path program 1 times [2020-10-15 02:29:05,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:05,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089646810] [2020-10-15 02:29:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:05,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:06,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:10,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:10,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-15 02:29:10,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:29:10,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:29:10,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:10,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:29:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-15 02:29:10,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,068 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-15 02:29:11,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-15 02:29:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-15 02:29:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:29:11,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:29:11,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:29:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-15 02:29:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:11,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-15 02:29:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:11,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:11,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:11,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:29:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-15 02:29:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-15 02:29:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:11,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:11,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:11,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:11,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:29:11,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089646810] [2020-10-15 02:29:11,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:29:11,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:29:11,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845008784] [2020-10-15 02:29:11,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:29:11,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:11,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:29:11,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:29:11,961 INFO L87 Difference]: Start difference. First operand 18133 states and 30627 transitions. Second operand 11 states. [2020-10-15 02:29:12,875 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-15 02:29:13,619 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2020-10-15 02:29:14,370 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2020-10-15 02:29:16,791 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2020-10-15 02:29:43,211 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 361 [2020-10-15 02:29:43,722 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:44,080 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:44,660 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:45,562 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:46,019 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:46,251 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:46,941 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:47,667 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:47,959 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:48,845 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:49,574 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:49,867 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:50,714 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-15 02:29:51,386 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-15 02:29:51,629 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-15 02:29:54,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:54,337 INFO L93 Difference]: Finished difference Result 69980 states and 118156 transitions. [2020-10-15 02:29:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:29:54,339 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 247 [2020-10-15 02:29:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:54,492 INFO L225 Difference]: With dead ends: 69980 [2020-10-15 02:29:54,492 INFO L226 Difference]: Without dead ends: 52806 [2020-10-15 02:29:54,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:29:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52806 states. [2020-10-15 02:30:01,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52806 to 50480. [2020-10-15 02:30:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50480 states. [2020-10-15 02:30:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50480 states to 50480 states and 84906 transitions. [2020-10-15 02:30:01,353 INFO L78 Accepts]: Start accepts. Automaton has 50480 states and 84906 transitions. Word has length 247 [2020-10-15 02:30:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:01,353 INFO L479 AbstractCegarLoop]: Abstraction has 50480 states and 84906 transitions. [2020-10-15 02:30:01,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:30:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 50480 states and 84906 transitions. [2020-10-15 02:30:01,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-15 02:30:01,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:01,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:01,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:30:01,426 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:01,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:01,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1028534935, now seen corresponding path program 1 times [2020-10-15 02:30:01,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:01,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006520807] [2020-10-15 02:30:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:01,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:02,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking...