/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:24:22,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:24:22,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:24:22,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:24:22,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:24:22,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:24:22,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:24:22,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:24:22,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:24:22,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:24:22,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:24:22,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:24:22,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:24:22,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:24:22,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:24:22,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:24:22,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:24:22,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:24:22,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:24:22,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:24:22,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:24:22,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:24:22,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:24:22,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:24:22,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:24:22,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:24:22,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:24:22,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:24:22,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:24:22,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:24:22,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:24:22,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:24:22,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:24:22,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:24:22,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:24:22,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:24:22,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:24:22,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:24:22,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:24:22,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:24:22,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:24:22,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:24:23,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:24:23,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:24:23,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:24:23,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:24:23,010 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:24:23,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:24:23,011 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:24:23,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:24:23,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:24:23,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:24:23,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:24:23,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:24:23,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:24:23,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:24:23,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:24:23,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:24:23,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:24:23,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:24:23,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:24:23,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:24:23,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:24:23,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:24:23,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:24:23,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:24:23,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:24:23,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:24:23,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:24:23,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:24:23,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:24:23,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:24:23,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:24:23,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:24:23,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:24:23,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:24:23,342 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:24:23,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-13 13:24:23,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b91d65/e52934014ee0411da2be14d75ebbca6a/FLAGde303c12e [2020-10-13 13:24:23,903 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:24:23,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-13 13:24:23,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b91d65/e52934014ee0411da2be14d75ebbca6a/FLAGde303c12e [2020-10-13 13:24:24,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b91d65/e52934014ee0411da2be14d75ebbca6a [2020-10-13 13:24:24,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:24:24,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:24:24,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:24:24,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:24:24,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:24:24,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24, skipping insertion in model container [2020-10-13 13:24:24,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:24:24,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:24:24,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:24:24,652 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:24:24,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:24:24,792 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:24:24,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24 WrapperNode [2020-10-13 13:24:24,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:24:24,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:24:24,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:24:24,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:24:24,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... [2020-10-13 13:24:24,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:24:24,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:24:24,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:24:24,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:24:24,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:24:24,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:24:24,926 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:24:24,927 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:24:24,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:24:24,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:24:24,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:24:24,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:24:24,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:24:24,928 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:24:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:24:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:24:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:24:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:24:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:24:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:24:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:24:25,471 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:24:25,471 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:24:25,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:24:25 BoogieIcfgContainer [2020-10-13 13:24:25,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:24:25,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:24:25,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:24:25,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:24:25,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:24:24" (1/3) ... [2020-10-13 13:24:25,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a34f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:24:25, skipping insertion in model container [2020-10-13 13:24:25,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:24:24" (2/3) ... [2020-10-13 13:24:25,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a34f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:24:25, skipping insertion in model container [2020-10-13 13:24:25,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:24:25" (3/3) ... [2020-10-13 13:24:25,486 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-13 13:24:25,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:24:25,504 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:24:25,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:24:25,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:24:25,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:24:25,542 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:24:25,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:24:25,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:24:25,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:24:25,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:24:25,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:24:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-13 13:24:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 13:24:25,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:25,572 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] [2020-10-13 13:24:25,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:25,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:25,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1188661361, now seen corresponding path program 1 times [2020-10-13 13:24:25,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:25,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635702958] [2020-10-13 13:24:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:24:26,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-13 13:24:26,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:24:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:24:26,365 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:24:26,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:26,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:24:26,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:26,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:26,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:26,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:24:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:26,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:24:26,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:24:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:26,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:26,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:24:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:26,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:26,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:26,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:24:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:26,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:26,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:26,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:26,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:26,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:26,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:26,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:26,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:26,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:26,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635702958] [2020-10-13 13:24:26,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:26,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:24:26,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765050989] [2020-10-13 13:24:26,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:24:26,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:26,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:24:26,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:24:26,594 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 7 states. [2020-10-13 13:24:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:27,316 INFO L93 Difference]: Finished difference Result 178 states and 257 transitions. [2020-10-13 13:24:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:24:27,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-13 13:24:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:27,329 INFO L225 Difference]: With dead ends: 178 [2020-10-13 13:24:27,329 INFO L226 Difference]: Without dead ends: 102 [2020-10-13 13:24:27,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:24:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-13 13:24:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-13 13:24:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-13 13:24:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 150 transitions. [2020-10-13 13:24:27,387 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 150 transitions. Word has length 56 [2020-10-13 13:24:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:27,387 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 150 transitions. [2020-10-13 13:24:27,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:24:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 150 transitions. [2020-10-13 13:24:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 13:24:27,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:27,390 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] [2020-10-13 13:24:27,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:24:27,391 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:27,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:27,391 INFO L82 PathProgramCache]: Analyzing trace with hash -2086054639, now seen corresponding path program 1 times [2020-10-13 13:24:27,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:27,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702041360] [2020-10-13 13:24:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:27,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:27,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:27,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 13:24:27,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-13 13:24:27,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:24:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:27,943 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:24:27,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:27,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:27,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:27,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:27,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:27,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:27,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:27,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:27,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:27,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:27,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:27,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:27,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:27,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:27,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:27,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 13:24:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:28,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:28,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:28,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:28,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:28,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:24:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:28,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:28,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:28,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:28,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:28,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:28,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:28,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 13:24:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:28,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:28,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:28,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:28,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:28,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:28,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:24:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:28,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:28,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:28,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:28,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:28,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:28,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:28,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:28,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:28,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:28,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:28,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:28,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:28,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:28,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702041360] [2020-10-13 13:24:28,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:28,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:24:28,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329746967] [2020-10-13 13:24:28,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:24:28,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:28,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:24:28,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:24:28,149 INFO L87 Difference]: Start difference. First operand 102 states and 150 transitions. Second operand 11 states. [2020-10-13 13:24:28,449 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:24:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:29,366 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2020-10-13 13:24:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:24:29,366 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-13 13:24:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:29,371 INFO L225 Difference]: With dead ends: 183 [2020-10-13 13:24:29,372 INFO L226 Difference]: Without dead ends: 112 [2020-10-13 13:24:29,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:24:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-13 13:24:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2020-10-13 13:24:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-13 13:24:29,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2020-10-13 13:24:29,393 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 56 [2020-10-13 13:24:29,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:29,394 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2020-10-13 13:24:29,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:24:29,394 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2020-10-13 13:24:29,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 13:24:29,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:29,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:29,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:24:29,397 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:29,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:29,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1440061290, now seen corresponding path program 1 times [2020-10-13 13:24:29,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:29,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979910463] [2020-10-13 13:24:29,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:29,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:29,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:29,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:29,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:24:34,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:24:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-13 13:24:34,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:24:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:24:34,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:24:34,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:34,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:34,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:34,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:24:34,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:24:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:24:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:34,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:24:34,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:34,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:34,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:34,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:24:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:34,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:34,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:34,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 13:24:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:24:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:34,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:34,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:34,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:34,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:34,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:34,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:34,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:34,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:34,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979910463] [2020-10-13 13:24:34,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:34,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:34,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616245439] [2020-10-13 13:24:34,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:34,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:34,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:34,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:34,932 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand 10 states. [2020-10-13 13:24:35,083 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:24:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:36,335 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-10-13 13:24:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:24:36,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-13 13:24:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:36,340 INFO L225 Difference]: With dead ends: 226 [2020-10-13 13:24:36,340 INFO L226 Difference]: Without dead ends: 161 [2020-10-13 13:24:36,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:24:36,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-13 13:24:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2020-10-13 13:24:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-13 13:24:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2020-10-13 13:24:36,366 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 78 [2020-10-13 13:24:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:36,366 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2020-10-13 13:24:36,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2020-10-13 13:24:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 13:24:36,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:36,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:36,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:24:36,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:36,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:36,371 INFO L82 PathProgramCache]: Analyzing trace with hash -462526240, now seen corresponding path program 1 times [2020-10-13 13:24:36,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:36,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297214312] [2020-10-13 13:24:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:36,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:36,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:36,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:36,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:24:41,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:41,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:24:41,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:24:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 13:24:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:41,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:41,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:41,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:41,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:41,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:24:41,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:41,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:41,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:24:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:41,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:41,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:41,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:24:41,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:41,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:41,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:41,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:24:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:41,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:41,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:41,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:24:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:41,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:41,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:41,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:41,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:41,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:41,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:41,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:41,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:41,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:41,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:41,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297214312] [2020-10-13 13:24:41,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:41,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:41,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559269207] [2020-10-13 13:24:41,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:41,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:41,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:41,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:41,764 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand 10 states. [2020-10-13 13:24:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:43,134 INFO L93 Difference]: Finished difference Result 391 states and 528 transitions. [2020-10-13 13:24:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:24:43,139 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-13 13:24:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:43,142 INFO L225 Difference]: With dead ends: 391 [2020-10-13 13:24:43,142 INFO L226 Difference]: Without dead ends: 269 [2020-10-13 13:24:43,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:24:43,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-13 13:24:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2020-10-13 13:24:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-13 13:24:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 354 transitions. [2020-10-13 13:24:43,202 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 354 transitions. Word has length 78 [2020-10-13 13:24:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:43,203 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 354 transitions. [2020-10-13 13:24:43,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 354 transitions. [2020-10-13 13:24:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 13:24:43,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:43,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:43,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:24:43,206 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash -14301226, now seen corresponding path program 1 times [2020-10-13 13:24:43,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:43,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528931205] [2020-10-13 13:24:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:43,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:43,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:44,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:44,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:24:44,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:24:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-13 13:24:44,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:24:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:24:44,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:45,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:45,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:45,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:45,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:45,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:45,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:45,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:45,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:45,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:24:45,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:24:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:24:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:45,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:45,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:24:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:24:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:45,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:45,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:45,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:45,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:45,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:45,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:45,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:45,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:45,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:45,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528931205] [2020-10-13 13:24:45,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:45,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:45,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074332116] [2020-10-13 13:24:45,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:45,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:45,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:45,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:45,337 INFO L87 Difference]: Start difference. First operand 267 states and 354 transitions. Second operand 10 states. [2020-10-13 13:24:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:46,922 INFO L93 Difference]: Finished difference Result 703 states and 956 transitions. [2020-10-13 13:24:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:24:46,924 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-13 13:24:46,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:46,931 INFO L225 Difference]: With dead ends: 703 [2020-10-13 13:24:46,933 INFO L226 Difference]: Without dead ends: 473 [2020-10-13 13:24:46,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:24:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-13 13:24:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2020-10-13 13:24:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-10-13 13:24:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 630 transitions. [2020-10-13 13:24:47,007 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 630 transitions. Word has length 78 [2020-10-13 13:24:47,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:47,009 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 630 transitions. [2020-10-13 13:24:47,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 630 transitions. [2020-10-13 13:24:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 13:24:47,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:47,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:47,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:24:47,016 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1901310368, now seen corresponding path program 1 times [2020-10-13 13:24:47,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:47,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587113258] [2020-10-13 13:24:47,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:47,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:47,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:47,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:47,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:24:47,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:24:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 895 [2020-10-13 13:24:47,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 13:24:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:24:47,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:48,136 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:24:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:48,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:48,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:48,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:48,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:48,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:24:48,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:24:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:48,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:24:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:48,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:24:48,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:48,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:48,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:48,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:48,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:48,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:48,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:24:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:48,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:48,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:48,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:24:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:48,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:24:48,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:48,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:48,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:48,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:48,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:48,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:48,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:48,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587113258] [2020-10-13 13:24:48,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:48,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:48,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765643337] [2020-10-13 13:24:48,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:48,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:48,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:48,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:48,391 INFO L87 Difference]: Start difference. First operand 471 states and 630 transitions. Second operand 10 states. [2020-10-13 13:24:48,543 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:24:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:49,904 INFO L93 Difference]: Finished difference Result 1291 states and 1752 transitions. [2020-10-13 13:24:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:24:49,905 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-13 13:24:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:49,911 INFO L225 Difference]: With dead ends: 1291 [2020-10-13 13:24:49,911 INFO L226 Difference]: Without dead ends: 857 [2020-10-13 13:24:49,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:24:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-13 13:24:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 855. [2020-10-13 13:24:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-10-13 13:24:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1142 transitions. [2020-10-13 13:24:49,992 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1142 transitions. Word has length 78 [2020-10-13 13:24:49,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:49,993 INFO L479 AbstractCegarLoop]: Abstraction has 855 states and 1142 transitions. [2020-10-13 13:24:49,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1142 transitions. [2020-10-13 13:24:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 13:24:49,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:49,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:49,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:24:49,994 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:49,995 INFO L82 PathProgramCache]: Analyzing trace with hash 307025686, now seen corresponding path program 1 times [2020-10-13 13:24:49,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:49,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222841862] [2020-10-13 13:24:49,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:24:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-13 13:24:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:24:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:24:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:24:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:50,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:24:50,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:24:50,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:24:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:24:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:50,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:50,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:24:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:50,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:24:50,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:50,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:50,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:24:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:24:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:50,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:24:50,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:50,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:50,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:50,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:50,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:24:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:24:50,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:50,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222841862] [2020-10-13 13:24:50,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:50,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:24:50,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528022775] [2020-10-13 13:24:50,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:24:50,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:50,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:24:50,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:24:50,960 INFO L87 Difference]: Start difference. First operand 855 states and 1142 transitions. Second operand 16 states. [2020-10-13 13:24:51,132 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:24:52,287 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:24:53,631 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-13 13:24:53,892 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-13 13:24:54,191 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-10-13 13:24:54,390 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-13 13:24:55,429 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2020-10-13 13:24:56,589 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-13 13:24:57,266 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-10-13 13:24:57,396 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-13 13:24:58,207 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-13 13:24:58,418 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-13 13:24:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:59,678 INFO L93 Difference]: Finished difference Result 7485 states and 10653 transitions. [2020-10-13 13:24:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-13 13:24:59,680 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2020-10-13 13:24:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:59,721 INFO L225 Difference]: With dead ends: 7485 [2020-10-13 13:24:59,722 INFO L226 Difference]: Without dead ends: 6667 [2020-10-13 13:24:59,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1016, Invalid=3676, Unknown=0, NotChecked=0, Total=4692 [2020-10-13 13:24:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2020-10-13 13:25:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 4239. [2020-10-13 13:25:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2020-10-13 13:25:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 5686 transitions. [2020-10-13 13:25:00,174 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 5686 transitions. Word has length 78 [2020-10-13 13:25:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:00,175 INFO L479 AbstractCegarLoop]: Abstraction has 4239 states and 5686 transitions. [2020-10-13 13:25:00,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:25:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 5686 transitions. [2020-10-13 13:25:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 13:25:00,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:00,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:00,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:25:00,176 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:00,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1406405946, now seen corresponding path program 1 times [2020-10-13 13:25:00,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:00,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704932487] [2020-10-13 13:25:00,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 13:25:00,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:25:00,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-13 13:25:00,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:00,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 13:25:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:25:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:00,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:00,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:00,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:00,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:00,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:00,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:00,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:00,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:00,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:00,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:00,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:25:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:00,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:25:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:25:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:25:00,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704932487] [2020-10-13 13:25:00,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:25:00,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:25:00,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103569458] [2020-10-13 13:25:00,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:25:00,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:00,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:25:00,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:25:00,972 INFO L87 Difference]: Start difference. First operand 4239 states and 5686 transitions. Second operand 8 states. [2020-10-13 13:25:01,622 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 13:25:02,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:02,698 INFO L93 Difference]: Finished difference Result 10995 states and 14844 transitions. [2020-10-13 13:25:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:25:02,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-13 13:25:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:02,733 INFO L225 Difference]: With dead ends: 10995 [2020-10-13 13:25:02,733 INFO L226 Difference]: Without dead ends: 6793 [2020-10-13 13:25:02,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:25:02,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2020-10-13 13:25:03,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6791. [2020-10-13 13:25:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6791 states. [2020-10-13 13:25:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6791 states to 6791 states and 8954 transitions. [2020-10-13 13:25:03,427 INFO L78 Accepts]: Start accepts. Automaton has 6791 states and 8954 transitions. Word has length 80 [2020-10-13 13:25:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:03,427 INFO L479 AbstractCegarLoop]: Abstraction has 6791 states and 8954 transitions. [2020-10-13 13:25:03,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:25:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 6791 states and 8954 transitions. [2020-10-13 13:25:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 13:25:03,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:03,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:03,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:25:03,429 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:03,429 INFO L82 PathProgramCache]: Analyzing trace with hash -258381568, now seen corresponding path program 1 times [2020-10-13 13:25:03,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:03,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307595471] [2020-10-13 13:25:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:25:03,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:25:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 13:25:03,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:25:03,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-13 13:25:03,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:03,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:03,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:25:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:03,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:25:03,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:03,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:03,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:03,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:03,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:03,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:03,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:03,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:03,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:03,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:03,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:03,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:25:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:03,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:25:03,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307595471] [2020-10-13 13:25:03,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:25:03,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:25:03,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970478723] [2020-10-13 13:25:03,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:25:03,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:03,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:25:03,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:25:03,986 INFO L87 Difference]: Start difference. First operand 6791 states and 8954 transitions. Second operand 10 states. [2020-10-13 13:25:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:06,253 INFO L93 Difference]: Finished difference Result 15161 states and 20082 transitions. [2020-10-13 13:25:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:25:06,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-13 13:25:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:06,297 INFO L225 Difference]: With dead ends: 15161 [2020-10-13 13:25:06,297 INFO L226 Difference]: Without dead ends: 8407 [2020-10-13 13:25:06,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:25:06,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8407 states. [2020-10-13 13:25:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8407 to 8403. [2020-10-13 13:25:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8403 states. [2020-10-13 13:25:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8403 states to 8403 states and 11075 transitions. [2020-10-13 13:25:07,099 INFO L78 Accepts]: Start accepts. Automaton has 8403 states and 11075 transitions. Word has length 81 [2020-10-13 13:25:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:07,099 INFO L479 AbstractCegarLoop]: Abstraction has 8403 states and 11075 transitions. [2020-10-13 13:25:07,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:25:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8403 states and 11075 transitions. [2020-10-13 13:25:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 13:25:07,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:07,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:07,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:25:07,101 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1389043393, now seen corresponding path program 1 times [2020-10-13 13:25:07,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:07,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537355136] [2020-10-13 13:25:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:25:07,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-13 13:25:07,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:25:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 13:25:07,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:07,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:07,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:07,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:07,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:07,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:07,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:07,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:07,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:07,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:07,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:07,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:07,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:07,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:25:07,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:25:07,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537355136] [2020-10-13 13:25:07,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:25:07,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:25:07,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895794939] [2020-10-13 13:25:07,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:25:07,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:07,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:25:07,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:25:07,695 INFO L87 Difference]: Start difference. First operand 8403 states and 11075 transitions. Second operand 13 states. [2020-10-13 13:25:08,764 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:25:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:09,636 INFO L93 Difference]: Finished difference Result 10819 states and 14858 transitions. [2020-10-13 13:25:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:25:09,637 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-13 13:25:09,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:09,695 INFO L225 Difference]: With dead ends: 10819 [2020-10-13 13:25:09,696 INFO L226 Difference]: Without dead ends: 10817 [2020-10-13 13:25:09,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:25:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2020-10-13 13:25:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 9555. [2020-10-13 13:25:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9555 states. [2020-10-13 13:25:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9555 states to 9555 states and 12235 transitions. [2020-10-13 13:25:10,372 INFO L78 Accepts]: Start accepts. Automaton has 9555 states and 12235 transitions. Word has length 81 [2020-10-13 13:25:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:10,372 INFO L479 AbstractCegarLoop]: Abstraction has 9555 states and 12235 transitions. [2020-10-13 13:25:10,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:25:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9555 states and 12235 transitions. [2020-10-13 13:25:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 13:25:10,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:10,379 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:10,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:25:10,379 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:10,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1007896415, now seen corresponding path program 1 times [2020-10-13 13:25:10,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:10,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802201608] [2020-10-13 13:25:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:10,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:12,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:13,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:25:15,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:25:15,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 13:25:15,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:25:15,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:25:15,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 13:25:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:15,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:15,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:25:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:25:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:15,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:25:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:15,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:15,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:15,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:25:15,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:25:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:15,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:15,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:25:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:15,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:25:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:15,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:25:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:15,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:15,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:15,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:16,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 13:25:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:16,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:16,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:16,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:16,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:16,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:16,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:16,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:16,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:16,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 13:25:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:16,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:16,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:16,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:16,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:16,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:16,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:25:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:16,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:25:16,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802201608] [2020-10-13 13:25:16,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:16,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:25:16,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111931261] [2020-10-13 13:25:16,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:25:16,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:16,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:25:16,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:25:16,061 INFO L87 Difference]: Start difference. First operand 9555 states and 12235 transitions. Second operand 16 states. [2020-10-13 13:25:17,016 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:25:17,147 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-13 13:25:18,663 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:25:18,944 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-10-13 13:25:21,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:21,003 INFO L93 Difference]: Finished difference Result 32735 states and 41932 transitions. [2020-10-13 13:25:21,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 13:25:21,003 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 126 [2020-10-13 13:25:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:21,099 INFO L225 Difference]: With dead ends: 32735 [2020-10-13 13:25:21,100 INFO L226 Difference]: Without dead ends: 24973 [2020-10-13 13:25:21,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=426, Invalid=1736, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:25:21,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24973 states. [2020-10-13 13:25:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24973 to 24337. [2020-10-13 13:25:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24337 states. [2020-10-13 13:25:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24337 states to 24337 states and 31117 transitions. [2020-10-13 13:25:22,669 INFO L78 Accepts]: Start accepts. Automaton has 24337 states and 31117 transitions. Word has length 126 [2020-10-13 13:25:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:22,669 INFO L479 AbstractCegarLoop]: Abstraction has 24337 states and 31117 transitions. [2020-10-13 13:25:22,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:25:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 24337 states and 31117 transitions. [2020-10-13 13:25:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 13:25:22,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:22,678 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:22,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:25:22,678 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash 261377003, now seen corresponding path program 1 times [2020-10-13 13:25:22,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:22,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516815069] [2020-10-13 13:25:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:22,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:22,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:23,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:26,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:25:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:25:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:25:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:27,925 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:25:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:27,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:27,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:27,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:27,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:27,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:27,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:25:27,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:25:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:25:28,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:28,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:28,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:28,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:28,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:25:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:25:28,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:28,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:25:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:25:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:28,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:25:28,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:25:28,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:25:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:25:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:28,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:25:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:28,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:28,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-13 13:25:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:28,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:28,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:28,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:25:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:28,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:28,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:28,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:28,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:28,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:28,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:25:28,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516815069] [2020-10-13 13:25:28,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:28,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 13:25:28,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010927479] [2020-10-13 13:25:28,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:25:28,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:28,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:25:28,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:25:28,662 INFO L87 Difference]: Start difference. First operand 24337 states and 31117 transitions. Second operand 19 states. [2020-10-13 13:25:28,849 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:25:29,032 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:25:29,471 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2020-10-13 13:25:29,916 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-13 13:25:30,122 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-13 13:25:30,328 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-13 13:25:30,650 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-13 13:25:30,863 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-10-13 13:25:31,017 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2020-10-13 13:25:31,458 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-13 13:25:31,789 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-10-13 13:25:32,002 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-13 13:25:32,159 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-13 13:25:32,422 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-13 13:25:32,747 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-13 13:25:33,084 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-13 13:25:33,412 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2020-10-13 13:25:33,826 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2020-10-13 13:25:35,541 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:25:36,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:36,433 INFO L93 Difference]: Finished difference Result 28915 states and 36872 transitions. [2020-10-13 13:25:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 13:25:36,434 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 126 [2020-10-13 13:25:36,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:36,526 INFO L225 Difference]: With dead ends: 28915 [2020-10-13 13:25:36,526 INFO L226 Difference]: Without dead ends: 24793 [2020-10-13 13:25:36,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=610, Invalid=2360, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 13:25:36,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24793 states. [2020-10-13 13:25:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24793 to 24337. [2020-10-13 13:25:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24337 states. [2020-10-13 13:25:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24337 states to 24337 states and 31061 transitions. [2020-10-13 13:25:38,380 INFO L78 Accepts]: Start accepts. Automaton has 24337 states and 31061 transitions. Word has length 126 [2020-10-13 13:25:38,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:38,380 INFO L479 AbstractCegarLoop]: Abstraction has 24337 states and 31061 transitions. [2020-10-13 13:25:38,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:25:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 24337 states and 31061 transitions. [2020-10-13 13:25:38,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 13:25:38,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:38,389 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:38,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:25:38,389 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:38,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash -178758359, now seen corresponding path program 1 times [2020-10-13 13:25:38,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:38,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131894033] [2020-10-13 13:25:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 13:25:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 13:25:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:43,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:43,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:43,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:43,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:43,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:43,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:43,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:25:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:43,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:43,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:43,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:25:43,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:43,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:25:43,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:25:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:43,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:43,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:43,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:43,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:43,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:25:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:43,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:43,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:25:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:25:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 13:25:43,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 13:25:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:43,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:25:43,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 13:25:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:43,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:43,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:43,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:25:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:43,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:43,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:43,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:43,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:43,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:43,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:43,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 13:25:43,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131894033] [2020-10-13 13:25:43,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:43,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:25:43,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332479378] [2020-10-13 13:25:43,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:25:43,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:43,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:25:43,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:25:43,897 INFO L87 Difference]: Start difference. First operand 24337 states and 31061 transitions. Second operand 10 states. [2020-10-13 13:25:44,091 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:25:44,368 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:25:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:46,350 INFO L93 Difference]: Finished difference Result 44047 states and 56188 transitions. [2020-10-13 13:25:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:25:46,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-10-13 13:25:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:46,414 INFO L225 Difference]: With dead ends: 44047 [2020-10-13 13:25:46,415 INFO L226 Difference]: Without dead ends: 19751 [2020-10-13 13:25:46,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:25:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19751 states. [2020-10-13 13:25:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19751 to 18347. [2020-10-13 13:25:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18347 states. [2020-10-13 13:25:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18347 states to 18347 states and 23078 transitions. [2020-10-13 13:25:47,996 INFO L78 Accepts]: Start accepts. Automaton has 18347 states and 23078 transitions. Word has length 126 [2020-10-13 13:25:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:47,996 INFO L479 AbstractCegarLoop]: Abstraction has 18347 states and 23078 transitions. [2020-10-13 13:25:47,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:25:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 18347 states and 23078 transitions. [2020-10-13 13:25:48,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 13:25:48,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:48,002 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:48,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:25:48,002 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:48,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:48,003 INFO L82 PathProgramCache]: Analyzing trace with hash 953503517, now seen corresponding path program 1 times [2020-10-13 13:25:48,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:48,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039021680] [2020-10-13 13:25:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:48,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:48,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:48,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:48,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-13 13:25:53,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:25:53,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 13:25:53,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:25:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,243 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:25:53,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:53,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:25:53,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:53,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:25:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:53,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:25:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:25:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:25:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:25:53,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:53,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:25:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:53,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:53,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:25:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:53,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:53,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:25:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:25:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:53,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:53,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:25:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:53,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:25:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:53,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:53,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:25:53,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:25:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:53,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:25:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:53,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 13:25:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:53,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 13:25:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:53,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:53,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:53,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:25:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:53,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:53,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-13 13:25:53,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039021680] [2020-10-13 13:25:53,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:53,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:25:53,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908413777] [2020-10-13 13:25:53,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:25:53,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:53,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:25:53,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:25:53,715 INFO L87 Difference]: Start difference. First operand 18347 states and 23078 transitions. Second operand 14 states. [2020-10-13 13:25:54,113 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:25:54,750 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-13 13:25:55,666 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-13 13:25:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:56,876 INFO L93 Difference]: Finished difference Result 33317 states and 42083 transitions. [2020-10-13 13:25:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:25:56,877 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 126 [2020-10-13 13:25:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:56,917 INFO L225 Difference]: With dead ends: 33317 [2020-10-13 13:25:56,917 INFO L226 Difference]: Without dead ends: 14974 [2020-10-13 13:25:56,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:25:56,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14974 states. [2020-10-13 13:25:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14974 to 14854. [2020-10-13 13:25:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14854 states. [2020-10-13 13:25:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14854 states to 14854 states and 18476 transitions. [2020-10-13 13:25:58,140 INFO L78 Accepts]: Start accepts. Automaton has 14854 states and 18476 transitions. Word has length 126 [2020-10-13 13:25:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:58,141 INFO L479 AbstractCegarLoop]: Abstraction has 14854 states and 18476 transitions. [2020-10-13 13:25:58,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:25:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 14854 states and 18476 transitions. [2020-10-13 13:25:58,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:25:58,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:58,147 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:58,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:25:58,147 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:58,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:58,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1918607493, now seen corresponding path program 1 times [2020-10-13 13:25:58,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:58,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126079577] [2020-10-13 13:25:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:58,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:58,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:00,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:00,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 13:26:03,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:26:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:26:03,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:26:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:26:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:26:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:03,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:03,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:03,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:26:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:03,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:03,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:26:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:03,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:26:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:26:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:03,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:03,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:03,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:26:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:03,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:26:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:26:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:03,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:03,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:03,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:03,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 13:26:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:03,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:03,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:03,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:26:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:03,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:03,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:03,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:03,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:26:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:03,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:03,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:03,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:26:03,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126079577] [2020-10-13 13:26:03,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:03,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 13:26:03,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573776237] [2020-10-13 13:26:03,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 13:26:03,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:03,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 13:26:03,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:26:03,895 INFO L87 Difference]: Start difference. First operand 14854 states and 18476 transitions. Second operand 23 states. [2020-10-13 13:26:04,241 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 13:26:04,604 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-13 13:26:04,872 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:26:05,013 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:26:05,617 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-10-13 13:26:05,780 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-13 13:26:06,046 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 13:26:06,733 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-13 13:26:07,101 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:26:10,449 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 13:26:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:13,271 INFO L93 Difference]: Finished difference Result 53346 states and 66365 transitions. [2020-10-13 13:26:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-13 13:26:13,272 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 127 [2020-10-13 13:26:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:13,378 INFO L225 Difference]: With dead ends: 53346 [2020-10-13 13:26:13,378 INFO L226 Difference]: Without dead ends: 38568 [2020-10-13 13:26:13,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=789, Invalid=4467, Unknown=0, NotChecked=0, Total=5256 [2020-10-13 13:26:13,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38568 states. [2020-10-13 13:26:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38568 to 36984. [2020-10-13 13:26:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36984 states. [2020-10-13 13:26:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36984 states to 36984 states and 46366 transitions. [2020-10-13 13:26:15,959 INFO L78 Accepts]: Start accepts. Automaton has 36984 states and 46366 transitions. Word has length 127 [2020-10-13 13:26:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:15,959 INFO L479 AbstractCegarLoop]: Abstraction has 36984 states and 46366 transitions. [2020-10-13 13:26:15,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 13:26:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 36984 states and 46366 transitions. [2020-10-13 13:26:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:26:15,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:15,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:15,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:26:15,965 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:15,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:15,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1540421659, now seen corresponding path program 1 times [2020-10-13 13:26:15,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:15,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456849471] [2020-10-13 13:26:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:18,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 13:26:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:21,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:26:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:26:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:26:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:21,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:26:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:21,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:26:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:26:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:26:21,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:26:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:26:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:26:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:21,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:21,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:21,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:21,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:21,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:26:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:21,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:21,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:21,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:21,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:21,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:21,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:21,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:21,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:26:21,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456849471] [2020-10-13 13:26:21,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:21,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:26:21,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368076719] [2020-10-13 13:26:21,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:26:21,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:21,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:26:21,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:26:21,773 INFO L87 Difference]: Start difference. First operand 36984 states and 46366 transitions. Second operand 24 states. [2020-10-13 13:26:21,964 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:26:22,566 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:26:22,824 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:26:23,286 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 13:26:23,452 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-13 13:26:23,760 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 13:26:24,499 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-13 13:26:24,897 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:26:26,681 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-13 13:26:28,940 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:26:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:31,658 INFO L93 Difference]: Finished difference Result 44114 states and 54973 transitions. [2020-10-13 13:26:31,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-13 13:26:31,658 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 127 [2020-10-13 13:26:31,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:31,731 INFO L225 Difference]: With dead ends: 44114 [2020-10-13 13:26:31,732 INFO L226 Difference]: Without dead ends: 37860 [2020-10-13 13:26:31,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=762, Invalid=4640, Unknown=0, NotChecked=0, Total=5402 [2020-10-13 13:26:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37860 states. [2020-10-13 13:26:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37860 to 36984. [2020-10-13 13:26:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36984 states. [2020-10-13 13:26:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36984 states to 36984 states and 46350 transitions. [2020-10-13 13:26:34,163 INFO L78 Accepts]: Start accepts. Automaton has 36984 states and 46350 transitions. Word has length 127 [2020-10-13 13:26:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:34,164 INFO L479 AbstractCegarLoop]: Abstraction has 36984 states and 46350 transitions. [2020-10-13 13:26:34,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 13:26:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 36984 states and 46350 transitions. [2020-10-13 13:26:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:26:34,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:34,169 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:34,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:26:34,169 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:34,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:34,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1128850949, now seen corresponding path program 1 times [2020-10-13 13:26:34,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:34,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437758988] [2020-10-13 13:26:34,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-13 13:26:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 13:26:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:26:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:26:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:26:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:39,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:26:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:39,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:26:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:39,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:26:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:39,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:26:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:26:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:39,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 13:26:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:26:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:39,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:39,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:39,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:26:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:39,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:39,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:39,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:39,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 13:26:39,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437758988] [2020-10-13 13:26:39,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:39,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:26:39,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170729070] [2020-10-13 13:26:39,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:26:39,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:39,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:26:39,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:26:39,505 INFO L87 Difference]: Start difference. First operand 36984 states and 46350 transitions. Second operand 10 states. [2020-10-13 13:26:40,360 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-13 13:26:42,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:42,328 INFO L93 Difference]: Finished difference Result 54924 states and 68558 transitions. [2020-10-13 13:26:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:26:42,328 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2020-10-13 13:26:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:42,362 INFO L225 Difference]: With dead ends: 54924 [2020-10-13 13:26:42,362 INFO L226 Difference]: Without dead ends: 18050 [2020-10-13 13:26:42,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:26:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18050 states. [2020-10-13 13:26:43,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18050 to 18008. [2020-10-13 13:26:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18008 states. [2020-10-13 13:26:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18008 states to 18008 states and 22082 transitions. [2020-10-13 13:26:43,575 INFO L78 Accepts]: Start accepts. Automaton has 18008 states and 22082 transitions. Word has length 127 [2020-10-13 13:26:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:43,575 INFO L479 AbstractCegarLoop]: Abstraction has 18008 states and 22082 transitions. [2020-10-13 13:26:43,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:26:43,575 INFO L276 IsEmpty]: Start isEmpty. Operand 18008 states and 22082 transitions. [2020-10-13 13:26:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:26:43,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:43,577 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:43,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:26:43,578 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:43,578 INFO L82 PathProgramCache]: Analyzing trace with hash -39967293, now seen corresponding path program 1 times [2020-10-13 13:26:43,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:43,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923244026] [2020-10-13 13:26:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:26:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:26:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:26:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:26:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:48,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:48,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:48,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:26:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:26:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:26:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:48,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:26:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:48,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:48,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:26:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:26:48,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:26:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:26:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:26:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 13:26:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:26:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:26:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:48,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-13 13:26:48,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923244026] [2020-10-13 13:26:49,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:49,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:26:49,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890130852] [2020-10-13 13:26:49,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:26:49,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:49,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:26:49,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:26:49,001 INFO L87 Difference]: Start difference. First operand 18008 states and 22082 transitions. Second operand 14 states. [2020-10-13 13:26:49,605 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:26:51,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:51,651 INFO L93 Difference]: Finished difference Result 32858 states and 40435 transitions. [2020-10-13 13:26:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:26:51,652 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2020-10-13 13:26:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:51,678 INFO L225 Difference]: With dead ends: 32858 [2020-10-13 13:26:51,678 INFO L226 Difference]: Without dead ends: 14926 [2020-10-13 13:26:51,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=583, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:26:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14926 states. [2020-10-13 13:26:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14926 to 14926. [2020-10-13 13:26:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14926 states. [2020-10-13 13:26:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14926 states to 14926 states and 18111 transitions. [2020-10-13 13:26:52,994 INFO L78 Accepts]: Start accepts. Automaton has 14926 states and 18111 transitions. Word has length 127 [2020-10-13 13:26:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:52,994 INFO L479 AbstractCegarLoop]: Abstraction has 14926 states and 18111 transitions. [2020-10-13 13:26:52,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:26:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 14926 states and 18111 transitions. [2020-10-13 13:26:52,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:26:52,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:52,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:52,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:26:52,996 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:52,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:52,997 INFO L82 PathProgramCache]: Analyzing trace with hash -172877443, now seen corresponding path program 1 times [2020-10-13 13:26:52,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:52,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754005411] [2020-10-13 13:26:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:53,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:53,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:26:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:26:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 13:26:58,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:26:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:58,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:58,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:26:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:58,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:26:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:58,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:58,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:58,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:26:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:58,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:26:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:26:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:26:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:26:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:58,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:58,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:26:58,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:26:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:58,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:58,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-13 13:26:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:58,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:58,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:26:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:58,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:58,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:26:58,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754005411] [2020-10-13 13:26:58,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:58,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:26:58,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564357904] [2020-10-13 13:26:58,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:26:58,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:58,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:26:58,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:26:58,731 INFO L87 Difference]: Start difference. First operand 14926 states and 18111 transitions. Second operand 24 states. [2020-10-13 13:26:59,082 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 110 [2020-10-13 13:26:59,437 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 13:26:59,687 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2020-10-13 13:27:00,505 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2020-10-13 13:27:00,760 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 13:27:00,936 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2020-10-13 13:27:01,066 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-13 13:27:01,410 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-10-13 13:27:01,608 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-13 13:27:01,950 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-13 13:27:02,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 13:27:05,736 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-13 13:27:06,234 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-13 13:27:06,688 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-13 13:27:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:09,755 INFO L93 Difference]: Finished difference Result 54729 states and 66806 transitions. [2020-10-13 13:27:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-13 13:27:09,756 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 128 [2020-10-13 13:27:09,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:09,830 INFO L225 Difference]: With dead ends: 54729 [2020-10-13 13:27:09,830 INFO L226 Difference]: Without dead ends: 39879 [2020-10-13 13:27:09,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=999, Invalid=5163, Unknown=0, NotChecked=0, Total=6162 [2020-10-13 13:27:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39879 states. [2020-10-13 13:27:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39879 to 37993. [2020-10-13 13:27:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37993 states. [2020-10-13 13:27:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37993 states to 37993 states and 46735 transitions. [2020-10-13 13:27:12,735 INFO L78 Accepts]: Start accepts. Automaton has 37993 states and 46735 transitions. Word has length 128 [2020-10-13 13:27:12,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:12,736 INFO L479 AbstractCegarLoop]: Abstraction has 37993 states and 46735 transitions. [2020-10-13 13:27:12,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 13:27:12,736 INFO L276 IsEmpty]: Start isEmpty. Operand 37993 states and 46735 transitions. [2020-10-13 13:27:12,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:27:12,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:12,739 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:12,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:27:12,739 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:12,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:12,739 INFO L82 PathProgramCache]: Analyzing trace with hash -925643671, now seen corresponding path program 1 times [2020-10-13 13:27:12,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:12,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539382046] [2020-10-13 13:27:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:12,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:13,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:13,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:17,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:17,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:27:17,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:27:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:27:17,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:27:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:27:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:27:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:17,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:17,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:17,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:17,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:17,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:27:17,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:17,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:17,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:17,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:17,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:17,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:27:17,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:27:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:27:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:27:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:27:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:18,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:27:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:18,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:18,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:18,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:27:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:27:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:18,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:27:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:27:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:27:18,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:27:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:27:18,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:27:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:18,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:27:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:18,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,479 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:27:18,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539382046] [2020-10-13 13:27:18,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:18,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:27:18,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741342428] [2020-10-13 13:27:18,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:27:18,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:18,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:27:18,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:27:18,480 INFO L87 Difference]: Start difference. First operand 37993 states and 46735 transitions. Second operand 24 states. [2020-10-13 13:27:18,670 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 13:27:20,056 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-10-13 13:27:20,740 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-10-13 13:27:20,912 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-13 13:27:21,043 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-13 13:27:21,389 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-13 13:27:21,587 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-13 13:27:21,711 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-10-13 13:27:21,949 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-13 13:27:22,313 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:27:25,985 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-13 13:27:26,118 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-10-13 13:27:26,586 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-13 13:27:26,739 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-10-13 13:27:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:29,543 INFO L93 Difference]: Finished difference Result 48953 states and 59802 transitions. [2020-10-13 13:27:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-13 13:27:29,544 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 128 [2020-10-13 13:27:29,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:29,613 INFO L225 Difference]: With dead ends: 48953 [2020-10-13 13:27:29,613 INFO L226 Difference]: Without dead ends: 39423 [2020-10-13 13:27:29,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=929, Invalid=4923, Unknown=0, NotChecked=0, Total=5852 [2020-10-13 13:27:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39423 states. [2020-10-13 13:27:32,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39423 to 37993. [2020-10-13 13:27:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37993 states. [2020-10-13 13:27:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37993 states to 37993 states and 46711 transitions. [2020-10-13 13:27:32,437 INFO L78 Accepts]: Start accepts. Automaton has 37993 states and 46711 transitions. Word has length 128 [2020-10-13 13:27:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:32,437 INFO L479 AbstractCegarLoop]: Abstraction has 37993 states and 46711 transitions. [2020-10-13 13:27:32,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 13:27:32,437 INFO L276 IsEmpty]: Start isEmpty. Operand 37993 states and 46711 transitions. [2020-10-13 13:27:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:27:32,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:32,441 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:32,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:27:32,441 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:32,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1811105593, now seen corresponding path program 1 times [2020-10-13 13:27:32,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:32,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413190982] [2020-10-13 13:27:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 13:27:37,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:27:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:27:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:27:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:37,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:37,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:37,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:27:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:37,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:37,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:27:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:37,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:27:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:27:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:27:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:27:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:37,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:37,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:37,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-13 13:27:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:27:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:37,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:37,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 13:27:37,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413190982] [2020-10-13 13:27:37,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:37,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:27:37,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570551871] [2020-10-13 13:27:37,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:27:37,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:27:37,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:27:37,788 INFO L87 Difference]: Start difference. First operand 37993 states and 46711 transitions. Second operand 10 states. [2020-10-13 13:27:37,982 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 13:27:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:40,436 INFO L93 Difference]: Finished difference Result 56713 states and 69475 transitions. [2020-10-13 13:27:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:27:40,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2020-10-13 13:27:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:40,476 INFO L225 Difference]: With dead ends: 56713 [2020-10-13 13:27:40,477 INFO L226 Difference]: Without dead ends: 18823 [2020-10-13 13:27:40,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:27:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18823 states. [2020-10-13 13:27:41,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18823 to 18741. [2020-10-13 13:27:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18741 states. [2020-10-13 13:27:41,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18741 states to 18741 states and 22549 transitions. [2020-10-13 13:27:41,995 INFO L78 Accepts]: Start accepts. Automaton has 18741 states and 22549 transitions. Word has length 128 [2020-10-13 13:27:41,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:41,995 INFO L479 AbstractCegarLoop]: Abstraction has 18741 states and 22549 transitions. [2020-10-13 13:27:41,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:27:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 18741 states and 22549 transitions. [2020-10-13 13:27:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 13:27:41,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:41,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:41,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:27:41,999 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:41,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1629074441, now seen corresponding path program 1 times [2020-10-13 13:27:41,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:41,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643405607] [2020-10-13 13:27:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:42,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:43,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 13:27:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:47,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:27:47,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 13:27:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:27:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:47,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 13:27:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:47,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 13:27:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:27:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:47,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:27:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:47,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 13:27:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 13:27:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:27:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-13 13:27:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:47,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:47,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:47,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-13 13:27:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:47,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-13 13:27:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:47,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:27:47,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643405607] [2020-10-13 13:27:47,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:47,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:27:47,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354656313] [2020-10-13 13:27:47,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:27:47,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:47,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:27:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:27:47,464 INFO L87 Difference]: Start difference. First operand 18741 states and 22549 transitions. Second operand 16 states. [2020-10-13 13:27:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:52,265 INFO L93 Difference]: Finished difference Result 37865 states and 45562 transitions. [2020-10-13 13:27:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:27:52,266 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 128 [2020-10-13 13:27:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:52,305 INFO L225 Difference]: With dead ends: 37865 [2020-10-13 13:27:52,305 INFO L226 Difference]: Without dead ends: 19107 [2020-10-13 13:27:52,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=382, Invalid=1598, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:27:52,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19107 states.