/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 SingleStatement --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o100.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:03:36,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:03:36,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:03:36,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:03:36,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:03:36,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:03:36,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:03:36,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:03:36,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:03:36,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:03:36,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:03:36,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:03:36,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:03:36,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:03:36,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:03:36,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:03:36,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:03:36,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:03:36,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:03:36,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:03:36,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:03:36,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:03:36,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:03:36,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:03:36,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:03:36,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:03:36,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:03:36,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:03:37,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:03:37,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:03:37,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:03:37,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:03:37,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:03:37,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:03:37,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:03:37,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:03:37,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:03:37,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:03:37,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:03:37,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:03:37,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:03:37,022 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 [2020-09-25 02:03:37,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:03:37,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:03:37,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:03:37,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:03:37,067 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:03:37,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:03:37,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:03:37,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:03:37,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:03:37,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:03:37,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:03:37,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:03:37,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:03:37,070 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:03:37,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:03:37,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:03:37,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:03:37,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:03:37,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:03:37,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:03:37,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:03:37,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:03:37,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:03:37,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:03:37,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:03:37,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:03:37,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:03:37,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:03:37,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:03:37,073 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 -> SingleStatement 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; 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; 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; 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; 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; [2020-09-25 02:03:37,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:03:37,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:03:37,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:03:37,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:03:37,538 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:03:37,539 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-25 02:03:37,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c636613a9/6bb1ff0d5ace464f8aa1389041e1894c/FLAG95feb8ead [2020-09-25 02:03:38,143 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:03:38,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-25 02:03:38,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c636613a9/6bb1ff0d5ace464f8aa1389041e1894c/FLAG95feb8ead [2020-09-25 02:03:38,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c636613a9/6bb1ff0d5ace464f8aa1389041e1894c [2020-09-25 02:03:38,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:03:38,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:03:38,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:03:38,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:03:38,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:03:38,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a067aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38, skipping insertion in model container [2020-09-25 02:03:38,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:03:38,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:03:38,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:03:38,751 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:03:38,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:03:38,782 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:03:38,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38 WrapperNode [2020-09-25 02:03:38,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:03:38,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:03:38,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:03:38,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:03:38,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (1/1) ... [2020-09-25 02:03:38,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:03:38,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:03:38,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:03:38,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:03:38,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (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 [2020-09-25 02:03:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:03:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:03:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 02:03:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:03:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:03:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:03:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 02:03:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:03:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:03:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:03:39,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:03:39,162 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:03:39,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:03:39 BoogieIcfgContainer [2020-09-25 02:03:39,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:03:39,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:03:39,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:03:39,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:03:39,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:03:38" (1/3) ... [2020-09-25 02:03:39,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d69818c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:03:39, skipping insertion in model container [2020-09-25 02:03:39,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:03:38" (2/3) ... [2020-09-25 02:03:39,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d69818c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:03:39, skipping insertion in model container [2020-09-25 02:03:39,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:03:39" (3/3) ... [2020-09-25 02:03:39,212 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o100.c [2020-09-25 02:03:39,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:03:39,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:03:39,284 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:03:39,312 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:03:39,312 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:03:39,313 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:03:39,313 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:03:39,313 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:03:39,313 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:03:39,314 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:03:39,314 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:03:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 02:03:39,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 02:03:39,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:39,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:39,342 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:39,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-25 02:03:39,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:39,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83797748] [2020-09-25 02:03:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:39,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:39,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 02:03:39,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 02:03:39,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:03:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:03:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:03:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:39,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:39,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:39,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:03:39,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:39,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:39,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:39,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:39,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:39,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:03:39,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:03:39,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83797748] [2020-09-25 02:03:39,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:03:39,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:03:39,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281147398] [2020-09-25 02:03:39,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:03:39,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:39,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:03:39,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:03:39,766 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-25 02:03:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:39,847 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 02:03:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:03:39,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 02:03:39,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:39,861 INFO L225 Difference]: With dead ends: 37 [2020-09-25 02:03:39,862 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 02:03:39,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:03:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 02:03:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-25 02:03:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-25 02:03:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-25 02:03:39,918 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-25 02:03:39,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:39,918 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-25 02:03:39,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:03:39,919 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-25 02:03:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 02:03:39,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:39,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:39,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:03:39,922 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:39,923 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-25 02:03:39,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:39,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875378415] [2020-09-25 02:03:39,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:39,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:03:40,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 02:03:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:03:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 02:03:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:03:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:40,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:40,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:03:40,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:40,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:40,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:40,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 02:03:40,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:40,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:03:40,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:40,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:03:40,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875378415] [2020-09-25 02:03:40,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:40,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:03:40,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483758890] [2020-09-25 02:03:40,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:03:40,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:40,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:03:40,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:03:40,496 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-25 02:03:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:40,591 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-25 02:03:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:03:40,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-25 02:03:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:40,593 INFO L225 Difference]: With dead ends: 31 [2020-09-25 02:03:40,594 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 02:03:40,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:03:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 02:03:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 02:03:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 02:03:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 02:03:40,602 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-25 02:03:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:40,603 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 02:03:40,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:03:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 02:03:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:03:40,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:40,605 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:40,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:03:40,606 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:40,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:40,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-25 02:03:40,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:40,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615060090] [2020-09-25 02:03:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 02:03:40,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 02:03:40,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:03:40,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 02:03:40,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:03:40,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:40,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:03:40,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:40,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:40,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:40,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:40,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:40,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 02:03:40,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:40,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:40,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:40,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 02:03:41,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:41,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:41,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:03:41,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 02:03:41,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615060090] [2020-09-25 02:03:41,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:41,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:03:41,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270908173] [2020-09-25 02:03:41,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:03:41,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:41,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:03:41,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:03:41,125 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-25 02:03:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:41,237 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-25 02:03:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:03:41,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-25 02:03:41,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:41,240 INFO L225 Difference]: With dead ends: 35 [2020-09-25 02:03:41,240 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 02:03:41,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:03:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 02:03:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 02:03:41,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 02:03:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 02:03:41,247 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-25 02:03:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:41,248 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 02:03:41,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:03:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 02:03:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 02:03:41,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:41,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:41,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:03:41,250 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-25 02:03:41,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:41,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132977897] [2020-09-25 02:03:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 02:03:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 02:03:41,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:03:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 02:03:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:03:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:41,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:03:41,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:41,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:41,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:41,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 02:03:41,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:41,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:41,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 02:03:41,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:41,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:41,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:41,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:03:41,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:41,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:41,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:41,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:41,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:41,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:03:41,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:41,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:03:42,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132977897] [2020-09-25 02:03:42,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:42,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 02:03:42,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148728852] [2020-09-25 02:03:42,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:03:42,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:42,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:03:42,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:03:42,010 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-25 02:03:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:42,141 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 02:03:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 02:03:42,142 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 02:03:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:42,144 INFO L225 Difference]: With dead ends: 39 [2020-09-25 02:03:42,144 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 02:03:42,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:03:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 02:03:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-25 02:03:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 02:03:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 02:03:42,152 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-25 02:03:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:42,152 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 02:03:42,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:03:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 02:03:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 02:03:42,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:42,154 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:42,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:03:42,155 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-25 02:03:42,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:42,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983026315] [2020-09-25 02:03:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:42,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 02:03:42,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 02:03:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:03:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 02:03:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:03:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:42,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:42,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:42,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:42,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:42,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:42,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:42,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:42,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:42,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:42,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:42,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:42,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:42,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-25 02:03:42,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:42,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:42,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:42,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:42,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:42,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:42,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:42,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:42,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 02:03:42,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:42,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:42,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:43,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:43,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:43,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:43,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 02:03:43,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:43,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:43,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:43,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:43,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:43,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:43,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:43,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 02:03:43,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:43,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:43,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:43,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:43,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:43,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:43,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:43,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:03:43,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 02:03:43,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983026315] [2020-09-25 02:03:43,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:43,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 02:03:43,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221459930] [2020-09-25 02:03:43,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 02:03:43,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:43,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 02:03:43,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:03:43,199 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-25 02:03:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:43,381 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-25 02:03:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 02:03:43,382 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 02:03:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:43,383 INFO L225 Difference]: With dead ends: 43 [2020-09-25 02:03:43,383 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 02:03:43,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:03:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 02:03:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 02:03:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 02:03:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 02:03:43,394 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-25 02:03:43,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:43,394 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 02:03:43,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 02:03:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 02:03:43,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 02:03:43,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:43,396 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:43,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:03:43,397 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:43,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:43,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-25 02:03:43,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:43,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672440793] [2020-09-25 02:03:43,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:43,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:43,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:43,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 02:03:43,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-09-25 02:03:43,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:03:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 02:03:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:03:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:43,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:43,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:43,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:43,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:43,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:43,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:43,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:44,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:44,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:03:44,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 02:03:44,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:03:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:44,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:03:44,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:44,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:44,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:44,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 02:03:44,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:44,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:44,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:44,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:44,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:44,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:44,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 02:03:44,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:44,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:44,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:44,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:44,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:44,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:44,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:44,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:44,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 02:03:44,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:45,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:45,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:45,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:45,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:45,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:45,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:03:45,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:45,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:45,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:45,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:03:45,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 02:03:45,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672440793] [2020-09-25 02:03:45,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:45,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:03:45,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129664215] [2020-09-25 02:03:45,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:03:45,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:45,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:03:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:03:45,169 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-25 02:03:45,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:45,411 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 02:03:45,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:03:45,411 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-25 02:03:45,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:45,413 INFO L225 Difference]: With dead ends: 47 [2020-09-25 02:03:45,413 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 02:03:45,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:03:45,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 02:03:45,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 02:03:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 02:03:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 02:03:45,421 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-25 02:03:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:45,421 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 02:03:45,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:03:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 02:03:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 02:03:45,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:45,423 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:45,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:03:45,423 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:45,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-25 02:03:45,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:45,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791674828] [2020-09-25 02:03:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:45,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:45,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:45,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:03:45,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 02:03:45,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:03:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 02:03:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:03:45,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:45,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:45,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:45,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:45,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:45,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:46,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:46,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:46,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:03:46,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-09-25 02:03:46,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:03:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:03:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:46,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:46,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:46,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:03:46,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:46,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 02:03:46,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:03:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:46,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:03:46,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:46,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:46,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:46,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 02:03:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:47,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:47,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:47,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:47,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 02:03:47,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:47,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:47,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:47,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:47,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:47,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:47,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:47,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 02:03:47,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:47,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:47,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:47,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:47,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:03:47,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:47,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:47,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:03:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:47,512 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 02:03:47,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791674828] [2020-09-25 02:03:47,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:47,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 02:03:47,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235317785] [2020-09-25 02:03:47,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 02:03:47,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:47,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 02:03:47,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:03:47,518 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-25 02:03:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:47,841 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 02:03:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 02:03:47,841 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-25 02:03:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:47,843 INFO L225 Difference]: With dead ends: 51 [2020-09-25 02:03:47,843 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 02:03:47,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-25 02:03:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 02:03:47,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 02:03:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 02:03:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 02:03:47,852 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-25 02:03:47,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:47,853 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 02:03:47,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 02:03:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 02:03:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 02:03:47,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:47,854 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:47,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:03:47,855 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:47,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:47,855 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-25 02:03:47,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:47,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812940667] [2020-09-25 02:03:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:47,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:48,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:48,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 02:03:48,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:48,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-09-25 02:03:48,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 02:03:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 02:03:48,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 02:03:48,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:48,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:48,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:48,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:48,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:48,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:48,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:48,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:49,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:03:49,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-09-25 02:03:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:03:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:03:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:49,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:49,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:49,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:49,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:03:49,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:49,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 02:03:49,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:03:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:03:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:49,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:49,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:49,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:03:49,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:49,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-09-25 02:03:49,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:03:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:49,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:03:49,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:49,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:49,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:50,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:50,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:50,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:50,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 02:03:50,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:50,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:50,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:50,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:50,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:50,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:50,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 02:03:50,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:50,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:50,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:50,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:50,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:50,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 02:03:50,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:50,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:50,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:50,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:50,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:03:50,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:50,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:50,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:50,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:03:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 02:03:50,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812940667] [2020-09-25 02:03:50,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:50,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 02:03:50,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505726299] [2020-09-25 02:03:50,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 02:03:50,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:50,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 02:03:50,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-25 02:03:50,499 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-25 02:03:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:50,872 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 02:03:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 02:03:50,873 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-25 02:03:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:50,874 INFO L225 Difference]: With dead ends: 55 [2020-09-25 02:03:50,875 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 02:03:50,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-25 02:03:50,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 02:03:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 02:03:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 02:03:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 02:03:50,890 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-25 02:03:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:50,891 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 02:03:50,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 02:03:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 02:03:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:03:50,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:50,895 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:50,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 02:03:50,895 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:50,895 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-25 02:03:50,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:50,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451859521] [2020-09-25 02:03:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:51,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:51,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 02:03:51,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:51,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718 [2020-09-25 02:03:51,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 02:03:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 02:03:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 02:03:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:51,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:51,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:51,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:51,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:51,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:51,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:52,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:52,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:03:52,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-09-25 02:03:52,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:03:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:52,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:03:52,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:52,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:52,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:52,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:03:52,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 02:03:52,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:03:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:03:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:52,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:53,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:53,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:03:53,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:53,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 02:03:53,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:53,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:03:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:03:53,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:53,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:53,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:53,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:53,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:03:53,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:53,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 02:03:53,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:03:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:53,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:03:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:53,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:53,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:53,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:53,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:53,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:53,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 02:03:53,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:53,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:53,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:53,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:53,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:53,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:53,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:53,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 02:03:53,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:53,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:53,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:53,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:54,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:54,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:54,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:03:54,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:54,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:54,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:54,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:54,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:54,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:54,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:54,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:03:54,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:54,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:54,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:54,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:54,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:54,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 02:03:54,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451859521] [2020-09-25 02:03:54,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:54,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 02:03:54,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447446506] [2020-09-25 02:03:54,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 02:03:54,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:54,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 02:03:54,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:03:54,306 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 02:03:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:54,758 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 02:03:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 02:03:54,759 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 02:03:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:54,760 INFO L225 Difference]: With dead ends: 59 [2020-09-25 02:03:54,760 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 02:03:54,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:03:54,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 02:03:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 02:03:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 02:03:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-25 02:03:54,773 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-25 02:03:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:54,774 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-25 02:03:54,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 02:03:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-25 02:03:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 02:03:54,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:54,775 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:54,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 02:03:54,776 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:54,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-25 02:03:54,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:54,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070889060] [2020-09-25 02:03:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:55,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:55,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 02:03:55,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:55,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-25 02:03:55,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:55,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 02:03:55,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 02:03:55,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:55,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:03:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:55,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:55,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:55,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:03:55,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:55,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:03:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:56,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:56,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:03:56,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:56,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-09-25 02:03:56,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:03:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:56,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:03:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:56,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:56,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:03:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-09-25 02:03:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:03:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:03:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:57,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:57,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:03:57,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:57,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 02:03:57,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:03:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:57,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:03:57,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:57,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:03:58,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:03:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 02:03:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:03:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:03:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:03:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:03:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:58,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:58,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:03:58,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 02:03:58,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:03:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:03:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:03:59,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:03:59,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:03:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:03:59,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:03:59,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:03:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:03:59,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:03:59,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:03:59,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:03:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:03:59,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:03:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:03:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:03:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:03:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:03:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 02:03:59,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070889060] [2020-09-25 02:03:59,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:03:59,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 02:03:59,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162019998] [2020-09-25 02:03:59,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 02:03:59,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:03:59,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 02:03:59,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:03:59,178 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-25 02:03:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:03:59,783 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-25 02:03:59,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 02:03:59,784 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 02:03:59,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:03:59,786 INFO L225 Difference]: With dead ends: 63 [2020-09-25 02:03:59,786 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 02:03:59,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:03:59,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 02:03:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 02:03:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 02:03:59,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 02:03:59,793 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-25 02:03:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:03:59,794 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 02:03:59,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 02:03:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 02:03:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 02:03:59,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:03:59,795 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:03:59,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 02:03:59,796 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:03:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:03:59,796 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-25 02:03:59,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:03:59,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114361221] [2020-09-25 02:03:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:03:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:03:59,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 02:04:00,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 889 [2020-09-25 02:04:00,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 02:04:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 02:04:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 02:04:00,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:00,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:00,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:04:00,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:00,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:00,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:00,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:02,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:02,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:02,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:03,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 02:04:03,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:03,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:03,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:03,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:03,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:03,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:03,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:03,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:03,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 02:04:03,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:03,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:04,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 02:04:04,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:04,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 02:04:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:04,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:04,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:04,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:04:04,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 02:04:04,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114361221] [2020-09-25 02:04:04,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:04,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 02:04:04,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141648879] [2020-09-25 02:04:04,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 02:04:04,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:04,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 02:04:04,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:04:04,692 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-25 02:04:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:05,409 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 02:04:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 02:04:05,409 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-25 02:04:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:05,411 INFO L225 Difference]: With dead ends: 67 [2020-09-25 02:04:05,411 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 02:04:05,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 02:04:05,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 02:04:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 02:04:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 02:04:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-25 02:04:05,418 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-25 02:04:05,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:05,418 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-25 02:04:05,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 02:04:05,419 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-25 02:04:05,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 02:04:05,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:05,420 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:05,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 02:04:05,420 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-25 02:04:05,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:05,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105423640] [2020-09-25 02:04:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:05,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 02:04:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:06,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:06,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:07,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:07,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:07,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-09-25 02:04:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:07,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:07,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:08,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 793 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:08,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:08,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:08,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:08,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:08,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:08,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-09-25 02:04:08,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:08,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:08,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:08,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:08,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:08,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:09,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:09,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:09,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:09,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:09,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-25 02:04:09,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:09,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:09,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:09,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:10,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 02:04:10,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:10,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:10,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:10,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:10,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 02:04:10,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:10,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:10,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:10,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:10,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 02:04:10,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:10,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:10,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:11,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:11,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:04:11,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:11,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:11,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:11,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:11,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:11,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:11,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:11,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 02:04:11,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105423640] [2020-09-25 02:04:11,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:11,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 02:04:11,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334978813] [2020-09-25 02:04:11,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 02:04:11,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:11,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 02:04:11,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-25 02:04:11,297 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-25 02:04:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:12,129 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 02:04:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 02:04:12,130 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-25 02:04:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:12,131 INFO L225 Difference]: With dead ends: 71 [2020-09-25 02:04:12,131 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 02:04:12,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 02:04:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 02:04:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 02:04:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 02:04:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 02:04:12,143 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-25 02:04:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:12,143 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 02:04:12,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 02:04:12,144 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 02:04:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 02:04:12,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:12,145 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:12,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 02:04:12,145 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:12,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-25 02:04:12,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:12,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913905522] [2020-09-25 02:04:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:13,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:04:13,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:04:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:13,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:13,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:13,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:13,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:14,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:14,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:04:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:15,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:15,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:15,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:15,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:16,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:16,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:16,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:16,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:16,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:17,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:17,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 02:04:17,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:17,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:17,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:17,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:17,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:17,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:17,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:17,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:17,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:18,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:18,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:18,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:18,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 02:04:18,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:18,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:18,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:18,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:18,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:18,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:18,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:19,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 02:04:19,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:19,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:19,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 02:04:19,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:19,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:19,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 02:04:19,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:19,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:19,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:19,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:19,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:19,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:04:19,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-25 02:04:19,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913905522] [2020-09-25 02:04:19,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:19,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 02:04:19,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648026496] [2020-09-25 02:04:19,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 02:04:19,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:19,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 02:04:19,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-25 02:04:19,930 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-25 02:04:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:20,847 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-25 02:04:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 02:04:20,848 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-25 02:04:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:20,849 INFO L225 Difference]: With dead ends: 75 [2020-09-25 02:04:20,849 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 02:04:20,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 02:04:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 02:04:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 02:04:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 02:04:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 02:04:20,856 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-25 02:04:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:20,856 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 02:04:20,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 02:04:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 02:04:20,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 02:04:20,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:20,858 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:20,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 02:04:20,858 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:20,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-25 02:04:20,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:20,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223461293] [2020-09-25 02:04:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:20,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:22,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:22,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 02:04:22,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-09-25 02:04:22,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 02:04:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 02:04:22,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 02:04:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:22,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:22,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:22,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:22,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:04:22,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:23,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:23,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1329 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 02:04:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:23,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 02:04:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:04:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:24,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:24,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:25,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 904 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 02:04:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:25,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:25,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:26,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:26,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 02:04:26,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-09-25 02:04:26,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 02:04:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:26,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 02:04:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:26,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:27,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:27,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:04:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:27,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:27,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:28,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:28,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:04:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:28,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:28,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 02:04:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-25 02:04:28,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:04:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:04:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:28,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:28,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:28,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:28,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:04:28,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:28,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 02:04:28,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:28,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:04:28,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:28,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 02:04:28,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:28,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:28,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:04:29,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 02:04:29,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:04:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:04:29,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:29,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:04:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:29,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:04:29,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:04:29,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:04:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:04:29,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:04:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:29,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:04:29,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 02:04:29,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:04:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:04:29,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:29,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:29,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 02:04:29,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 02:04:29,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:04:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:04:29,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:29,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:29,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:29,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:04:29,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:29,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:04:29,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:04:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:04:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-25 02:04:29,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223461293] [2020-09-25 02:04:29,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:04:29,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-25 02:04:29,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807226857] [2020-09-25 02:04:29,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-25 02:04:29,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:04:29,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-25 02:04:29,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-25 02:04:29,944 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-25 02:04:31,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:04:31,036 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 02:04:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-25 02:04:31,036 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-25 02:04:31,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:04:31,037 INFO L225 Difference]: With dead ends: 79 [2020-09-25 02:04:31,037 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 02:04:31,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-25 02:04:31,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 02:04:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 02:04:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 02:04:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-25 02:04:31,044 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-25 02:04:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:04:31,045 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-25 02:04:31,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-25 02:04:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-25 02:04:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 02:04:31,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:04:31,046 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:04:31,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 02:04:31,047 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:04:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:04:31,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-25 02:04:31,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:04:31,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537020105] [2020-09-25 02:04:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:04:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:32,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:32,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 02:04:32,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:32,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1776 [2020-09-25 02:04:32,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 02:04:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 02:04:32,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 02:04:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:04:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:32,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:32,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:04:32,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:04:32,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:04:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:04:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:32,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:04:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:04:34,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:04:34,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 02:04:34,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:04:34,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1555 [2020-09-25 02:04:34,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:04:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 02:04:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:04:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 02:04:34,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:04:34,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:04:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:04:34,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking...