/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 interpolation-heuristic=FIRST --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/sum_20x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:59:22,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:59:22,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:59:22,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:59:22,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:59:22,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:59:22,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:59:22,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:59:22,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:59:22,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:59:22,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:59:22,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:59:22,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:59:22,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:59:22,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:59:22,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:59:22,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:59:22,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:59:22,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:59:22,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:59:22,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:59:22,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:59:22,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:59:22,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:59:22,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:59:22,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:59:22,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:59:22,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:59:22,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:59:22,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:59:22,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:59:22,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:59:22,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:59:22,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:59:22,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:59:22,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:59:22,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:59:22,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:59:22,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:59:22,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:59:22,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:59:22,481 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 [2020-09-24 15:59:22,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:59:22,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:59:22,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:59:22,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:59:22,511 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:59:22,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:59:22,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:59:22,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:59:22,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:59:22,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:59:22,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:59:22,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:59:22,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:59:22,513 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:59:22,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:59:22,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:59:22,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:59:22,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:59:22,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:59:22,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:59:22,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:59:22,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:59:22,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:59:22,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:59:22,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:59:22,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:59:22,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:59:22,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:59:22,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:59:22,516 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:59:22,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:59:22,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:59:23,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:59:23,004 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:59:23,007 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:59:23,008 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-09-24 15:59:23,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c364bf96/2ed97eb32d2b45d184771e8d4894cf15/FLAGb2ed126d7 [2020-09-24 15:59:23,617 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:59:23,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_20x0-1.c [2020-09-24 15:59:23,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c364bf96/2ed97eb32d2b45d184771e8d4894cf15/FLAGb2ed126d7 [2020-09-24 15:59:23,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c364bf96/2ed97eb32d2b45d184771e8d4894cf15 [2020-09-24 15:59:23,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:59:23,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:59:24,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:24,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:59:24,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:59:24,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:23" (1/1) ... [2020-09-24 15:59:24,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21af3704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24, skipping insertion in model container [2020-09-24 15:59:24,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:23" (1/1) ... [2020-09-24 15:59:24,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:59:24,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:59:24,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:24,338 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:59:24,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:24,386 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:59:24,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24 WrapperNode [2020-09-24 15:59:24,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:24,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:59:24,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:59:24,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:59:24,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... [2020-09-24 15:59:24,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:59:24,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:59:24,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:59:24,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:59:24,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:59:24,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:59:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:59:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-24 15:59:24,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:59:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:59:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-24 15:59:24,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:59:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:59:24,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:59:24,872 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:59:24,872 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:59:24,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:24 BoogieIcfgContainer [2020-09-24 15:59:24,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:59:24,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:59:24,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:59:24,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:59:24,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:59:23" (1/3) ... [2020-09-24 15:59:24,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32016bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:24, skipping insertion in model container [2020-09-24 15:59:24,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:24" (2/3) ... [2020-09-24 15:59:24,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32016bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:24, skipping insertion in model container [2020-09-24 15:59:24,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:24" (3/3) ... [2020-09-24 15:59:24,888 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_20x0-1.c [2020-09-24 15:59:24,902 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:59:24,913 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:59:24,967 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:59:25,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:59:25,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:59:25,038 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:59:25,038 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:59:25,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:59:25,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:59:25,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:59:25,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:59:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-24 15:59:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 15:59:25,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:25,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:25,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:25,077 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-24 15:59:25,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:25,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372804935] [2020-09-24 15:59:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:59:25,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:25,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:25,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:25,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:25,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:25,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:25,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:25,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:25,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:25,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:25,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:59:25,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372804935] [2020-09-24 15:59:25,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:59:25,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:59:25,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935882329] [2020-09-24 15:59:25,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:59:25,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:25,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:59:25,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:59:25,485 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-24 15:59:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:25,589 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-24 15:59:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:59:25,592 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-24 15:59:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:25,610 INFO L225 Difference]: With dead ends: 39 [2020-09-24 15:59:25,610 INFO L226 Difference]: Without dead ends: 25 [2020-09-24 15:59:25,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:59:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-24 15:59:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-24 15:59:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 15:59:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-24 15:59:25,668 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-24 15:59:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:25,669 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-24 15:59:25,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:59:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-24 15:59:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 15:59:25,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:25,672 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:25,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:59:25,673 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:25,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:25,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-24 15:59:25,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:25,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148282144] [2020-09-24 15:59:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:25,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:25,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:59:25,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:25,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:25,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:25,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:25,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:25,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:59:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:25,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:25,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:25,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:59:25,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148282144] [2020-09-24 15:59:25,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:25,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:59:25,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115385346] [2020-09-24 15:59:25,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:59:25,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:25,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:59:25,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:59:25,948 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-24 15:59:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:26,034 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-24 15:59:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:59:26,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-24 15:59:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:26,037 INFO L225 Difference]: With dead ends: 36 [2020-09-24 15:59:26,037 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 15:59:26,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:59:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 15:59:26,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 15:59:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 15:59:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 15:59:26,047 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-24 15:59:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:26,048 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 15:59:26,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:59:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 15:59:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 15:59:26,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:26,050 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:26,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:59:26,050 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:26,051 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-24 15:59:26,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:26,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285265385] [2020-09-24 15:59:26,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 15:59:26,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:26,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,145 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:26,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:26,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:26,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,233 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:26,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:26,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:26,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:59:26,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:26,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:26,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:26,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:26,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:26,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 15:59:26,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285265385] [2020-09-24 15:59:26,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:26,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:26,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407431620] [2020-09-24 15:59:26,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:26,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:26,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:26,396 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-09-24 15:59:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:26,475 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-24 15:59:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:59:26,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-24 15:59:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:26,477 INFO L225 Difference]: With dead ends: 41 [2020-09-24 15:59:26,478 INFO L226 Difference]: Without dead ends: 35 [2020-09-24 15:59:26,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-24 15:59:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-24 15:59:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 15:59:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-24 15:59:26,491 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-24 15:59:26,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:26,492 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-24 15:59:26,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:26,492 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-24 15:59:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 15:59:26,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:26,495 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:26,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:59:26,495 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:26,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:26,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-24 15:59:26,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:26,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844078689] [2020-09-24 15:59:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 15:59:26,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:26,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:59:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:26,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 15:59:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:26,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:26,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:26,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:26,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,802 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:26,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:26,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:26,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-24 15:59:26,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844078689] [2020-09-24 15:59:26,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:26,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:59:26,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928234856] [2020-09-24 15:59:26,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:59:26,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:26,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:59:26,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:59:26,847 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2020-09-24 15:59:26,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:26,984 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-24 15:59:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:59:26,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-09-24 15:59:26,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:26,987 INFO L225 Difference]: With dead ends: 46 [2020-09-24 15:59:26,987 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 15:59:26,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 15:59:27,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-24 15:59:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 15:59:27,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-09-24 15:59:27,010 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45 [2020-09-24 15:59:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:27,011 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-09-24 15:59:27,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:59:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-09-24 15:59:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 15:59:27,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:27,016 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:27,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:59:27,018 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:27,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:27,018 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times [2020-09-24 15:59:27,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:27,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728591662] [2020-09-24 15:59:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 15:59:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:27,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:27,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:27,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:27,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 15:59:27,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:27,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:27,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:27,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:27,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:27,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:27,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:27,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:27,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 15:59:27,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728591662] [2020-09-24 15:59:27,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:27,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 15:59:27,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633637747] [2020-09-24 15:59:27,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:59:27,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:27,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:59:27,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:59:27,489 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states. [2020-09-24 15:59:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:27,592 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 15:59:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:59:27,593 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-24 15:59:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:27,594 INFO L225 Difference]: With dead ends: 51 [2020-09-24 15:59:27,595 INFO L226 Difference]: Without dead ends: 45 [2020-09-24 15:59:27,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-24 15:59:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-24 15:59:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-24 15:59:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-24 15:59:27,603 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54 [2020-09-24 15:59:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:27,604 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-24 15:59:27,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:59:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-24 15:59:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 15:59:27,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:27,606 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:27,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:59:27,606 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:27,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times [2020-09-24 15:59:27,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:27,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253151016] [2020-09-24 15:59:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 15:59:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:27,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:27,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 15:59:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:27,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:27,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:27,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:27,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:27,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:27,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:27,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:27,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:28,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:28,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:28,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:28,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 9 proven. 75 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-24 15:59:28,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253151016] [2020-09-24 15:59:28,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:28,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:28,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546723750] [2020-09-24 15:59:28,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:28,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:28,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:28,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:28,035 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states. [2020-09-24 15:59:28,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:28,150 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-09-24 15:59:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:59:28,151 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-09-24 15:59:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:28,153 INFO L225 Difference]: With dead ends: 56 [2020-09-24 15:59:28,153 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 15:59:28,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 15:59:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 15:59:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 15:59:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 15:59:28,162 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-24 15:59:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:28,162 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 15:59:28,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 15:59:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 15:59:28,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:28,164 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:28,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:59:28,165 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:28,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:28,165 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times [2020-09-24 15:59:28,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:28,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433543266] [2020-09-24 15:59:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 15:59:28,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 15:59:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:28,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:28,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:28,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:28,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:59:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:28,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:28,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:28,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:28,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:28,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:28,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,593 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,593 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:28,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:28,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:28,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:28,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:28,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:28,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:28,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:28,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:28,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:28,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:28,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:28,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 15 proven. 89 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 15:59:28,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433543266] [2020-09-24 15:59:28,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:28,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:59:28,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591523062] [2020-09-24 15:59:28,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:59:28,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:28,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:59:28,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:28,742 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states. [2020-09-24 15:59:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:28,903 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-24 15:59:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:59:28,904 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-09-24 15:59:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:28,905 INFO L225 Difference]: With dead ends: 61 [2020-09-24 15:59:28,906 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 15:59:28,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:59:28,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 15:59:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 15:59:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 15:59:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-24 15:59:28,914 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-24 15:59:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:28,914 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-24 15:59:28,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:59:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-24 15:59:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 15:59:28,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:28,916 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:28,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:59:28,917 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:28,917 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times [2020-09-24 15:59:28,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:28,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575418341] [2020-09-24 15:59:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-24 15:59:29,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:59:29,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 15:59:29,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:29,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,188 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:29,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-24 15:59:29,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:29,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:29,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:29,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:29,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:29,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:29,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:29,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:29,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:29,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:29,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:29,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 26 proven. 137 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 15:59:29,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575418341] [2020-09-24 15:59:29,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:29,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:59:29,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393835028] [2020-09-24 15:59:29,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:59:29,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:29,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:59:29,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:29,690 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 13 states. [2020-09-24 15:59:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:29,857 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-24 15:59:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:59:29,858 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-09-24 15:59:29,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:29,859 INFO L225 Difference]: With dead ends: 66 [2020-09-24 15:59:29,862 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 15:59:29,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 15:59:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-24 15:59:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 15:59:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-24 15:59:29,891 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81 [2020-09-24 15:59:29,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:29,892 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-24 15:59:29,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:59:29,893 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-24 15:59:29,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-24 15:59:29,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:29,897 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:29,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:59:29,898 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:29,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:29,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times [2020-09-24 15:59:29,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:29,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747251368] [2020-09-24 15:59:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 15:59:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:30,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 15:59:30,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,032 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:30,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:30,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:30,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:30,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:30,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:30,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 15:59:30,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:30,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:30,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:30,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:30,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:59:30,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:30,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:30,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:30,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:30,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:30,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:30,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:30,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:30,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:30,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:30,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:30,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:30,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:30,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:30,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:30,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:30,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:30,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 36 proven. 177 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-24 15:59:30,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747251368] [2020-09-24 15:59:30,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:30,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:30,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671618469] [2020-09-24 15:59:30,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:30,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:30,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:30,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:30,839 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 15 states. [2020-09-24 15:59:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:30,991 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 15:59:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:59:30,992 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 90 [2020-09-24 15:59:30,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:30,993 INFO L225 Difference]: With dead ends: 71 [2020-09-24 15:59:30,994 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 15:59:30,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:30,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 15:59:31,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-24 15:59:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 15:59:31,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-24 15:59:31,002 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90 [2020-09-24 15:59:31,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:31,002 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-24 15:59:31,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:31,003 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-24 15:59:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 15:59:31,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:31,004 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:31,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:59:31,004 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:31,005 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times [2020-09-24 15:59:31,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:31,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303574254] [2020-09-24 15:59:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-24 15:59:31,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:59:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 15:59:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:31,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:31,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:31,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 15:59:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:31,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:31,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:59:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:31,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:59:31,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:31,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:31,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:31,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:31,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:31,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:31,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:31,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:31,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:31,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:31,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:31,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:31,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:32,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 60 proven. 208 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-09-24 15:59:32,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303574254] [2020-09-24 15:59:32,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:32,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:32,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926692844] [2020-09-24 15:59:32,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:32,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:32,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:32,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:32,087 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states. [2020-09-24 15:59:32,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:32,251 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-24 15:59:32,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:59:32,252 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99 [2020-09-24 15:59:32,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:32,253 INFO L225 Difference]: With dead ends: 76 [2020-09-24 15:59:32,253 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 15:59:32,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 15:59:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 15:59:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 15:59:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 15:59:32,267 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99 [2020-09-24 15:59:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:32,268 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 15:59:32,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 15:59:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-24 15:59:32,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:32,269 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:32,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:59:32,270 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:32,270 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times [2020-09-24 15:59:32,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:32,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737714185] [2020-09-24 15:59:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:32,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 15:59:32,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:32,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:32,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:32,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 15:59:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:32,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:59:32,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:32,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:32,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 15:59:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:33,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 15:59:33,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:33,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:33,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:33,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:33,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:33,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:33,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,356 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:33,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:33,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:33,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:33,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:33,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:33,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:33,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:33,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:33,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:33,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:33,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:33,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:33,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:33,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:33,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 48 proven. 266 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-09-24 15:59:33,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737714185] [2020-09-24 15:59:33,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:33,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 15:59:33,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594987302] [2020-09-24 15:59:33,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 15:59:33,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:33,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 15:59:33,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:33,565 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-24 15:59:33,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:33,745 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-24 15:59:33,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:59:33,745 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2020-09-24 15:59:33,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:33,747 INFO L225 Difference]: With dead ends: 81 [2020-09-24 15:59:33,747 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 15:59:33,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:59:33,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 15:59:33,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-24 15:59:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 15:59:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-24 15:59:33,766 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 108 [2020-09-24 15:59:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:33,766 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-24 15:59:33,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 15:59:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-24 15:59:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-24 15:59:33,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:33,768 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:33,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:59:33,768 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:33,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:33,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1749540651, now seen corresponding path program 11 times [2020-09-24 15:59:33,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:33,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311782130] [2020-09-24 15:59:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:33,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:59:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:33,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:33,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:33,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:59:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 15:59:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,283 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,284 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:34,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 15:59:34,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:34,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:34,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:34,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:34,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:34,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:34,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:34,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:34,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:34,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:34,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:34,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:34,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:34,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:34,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:34,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:34,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:34,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:34,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:35,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:35,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:35,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:35,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:35,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:35,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 27 proven. 348 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-09-24 15:59:35,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311782130] [2020-09-24 15:59:35,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:35,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:59:35,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674668862] [2020-09-24 15:59:35,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:59:35,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:35,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:59:35,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:35,153 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 17 states. [2020-09-24 15:59:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:35,340 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-24 15:59:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:59:35,341 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-09-24 15:59:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:35,342 INFO L225 Difference]: With dead ends: 86 [2020-09-24 15:59:35,342 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 15:59:35,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:59:35,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 15:59:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-24 15:59:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 15:59:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 15:59:35,350 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 117 [2020-09-24 15:59:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:35,350 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 15:59:35,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:59:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 15:59:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-24 15:59:35,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:35,352 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:35,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:59:35,352 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1141580405, now seen corresponding path program 12 times [2020-09-24 15:59:35,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:35,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246479032] [2020-09-24 15:59:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-24 15:59:35,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 15:59:35,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 15:59:35,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:35,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:35,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:35,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 15:59:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 15:59:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:35,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:35,886 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:35,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:35,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:35,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:35,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 15:59:35,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:35,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:35,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:59:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:36,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 15:59:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:36,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:36,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:59:36,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:36,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:36,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:36,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:36,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:36,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:36,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,533 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:36,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:36,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:36,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:59:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:36,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:36,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:36,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:36,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:36,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:36,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:36,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 6 proven. 412 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2020-09-24 15:59:36,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246479032] [2020-09-24 15:59:36,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:36,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 15:59:36,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489262825] [2020-09-24 15:59:36,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 15:59:36,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:36,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 15:59:36,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:59:36,888 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 18 states. [2020-09-24 15:59:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:37,159 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-09-24 15:59:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:59:37,160 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 126 [2020-09-24 15:59:37,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:37,161 INFO L225 Difference]: With dead ends: 91 [2020-09-24 15:59:37,161 INFO L226 Difference]: Without dead ends: 85 [2020-09-24 15:59:37,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:59:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-24 15:59:37,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-24 15:59:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 15:59:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-09-24 15:59:37,176 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 126 [2020-09-24 15:59:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:37,177 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-09-24 15:59:37,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 15:59:37,177 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-09-24 15:59:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-24 15:59:37,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:37,180 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:37,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:59:37,180 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:37,181 INFO L82 PathProgramCache]: Analyzing trace with hash 55997035, now seen corresponding path program 13 times [2020-09-24 15:59:37,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:37,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300022949] [2020-09-24 15:59:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-24 15:59:37,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 15:59:37,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:37,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:37,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 15:59:37,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 15:59:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 15:59:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:38,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 15:59:38,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:38,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 15:59:38,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:38,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:38,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:38,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:38,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:38,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:38,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:38,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:38,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 15:59:38,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:38,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:38,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:38,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:38,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:38,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:38,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:38,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:38,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:38,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:38,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:38,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:38,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:38,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:38,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:38,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:38,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:38,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:38,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:38,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:39,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:39,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:39,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:39,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:39,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:39,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:39,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:39,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 48 proven. 519 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-09-24 15:59:39,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300022949] [2020-09-24 15:59:39,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:39,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:39,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670128981] [2020-09-24 15:59:39,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:39,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:39,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:39,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:39,268 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 21 states. [2020-09-24 15:59:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:39,587 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-09-24 15:59:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:59:39,588 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 135 [2020-09-24 15:59:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:39,590 INFO L225 Difference]: With dead ends: 96 [2020-09-24 15:59:39,590 INFO L226 Difference]: Without dead ends: 90 [2020-09-24 15:59:39,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=414, Invalid=776, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 15:59:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-24 15:59:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-24 15:59:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 15:59:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-09-24 15:59:39,597 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 135 [2020-09-24 15:59:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:39,598 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-09-24 15:59:39,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-09-24 15:59:39,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 15:59:39,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:39,601 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:39,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:59:39,601 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:39,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:39,602 INFO L82 PathProgramCache]: Analyzing trace with hash 394086239, now seen corresponding path program 14 times [2020-09-24 15:59:39,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:39,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717274725] [2020-09-24 15:59:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:39,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:39,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:39,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:39,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:39,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:59:39,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:39,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 15:59:39,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:39,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:39,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:39,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 15:59:39,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:39,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:39,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:39,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:39,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:39,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:39,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:40,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 15:59:40,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:40,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:40,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-09-24 15:59:40,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:40,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-24 15:59:40,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 15:59:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:40,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:40,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 15:59:40,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:40,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:41,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:41,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:41,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:41,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 15:59:41,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:41,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:41,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:41,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:41,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:41,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:41,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:41,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:41,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:41,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:41,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:41,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:59:41,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:41,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:41,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:41,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:41,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:41,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:41,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:41,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:41,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:41,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:41,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,802 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:41,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:41,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:41,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:41,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:41,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:41,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:41,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:41,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:41,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:41,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 107 proven. 555 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-09-24 15:59:42,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717274725] [2020-09-24 15:59:42,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:42,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:42,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426655094] [2020-09-24 15:59:42,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:42,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:42,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:42,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:42,146 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 21 states. [2020-09-24 15:59:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:42,375 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2020-09-24 15:59:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:59:42,376 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 144 [2020-09-24 15:59:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:42,377 INFO L225 Difference]: With dead ends: 101 [2020-09-24 15:59:42,377 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 15:59:42,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:59:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 15:59:42,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-09-24 15:59:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 15:59:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-09-24 15:59:42,384 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 144 [2020-09-24 15:59:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:42,384 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-09-24 15:59:42,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-09-24 15:59:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:59:42,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:42,387 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:42,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:59:42,387 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:42,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1047772929, now seen corresponding path program 15 times [2020-09-24 15:59:42,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:42,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438978642] [2020-09-24 15:59:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:59:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-24 15:59:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:42,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:42,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-24 15:59:42,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:42,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:42,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-09-24 15:59:42,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:43,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:43,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 15:59:43,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:43,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:43,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:43,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:43,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 15:59:43,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:43,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 15:59:43,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,159 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:44,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:59:44,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:44,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:44,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 15:59:44,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,440 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:44,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 15:59:44,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:44,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:44,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:44,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:44,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:59:44,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:44,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:44,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:44,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:44,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,820 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,821 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,821 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:44,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:44,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:44,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:44,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:44,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:44,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:44,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:44,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:44,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:44,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:44,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:44,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:44,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:44,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:44,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,005 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:45,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:45,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:45,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:45,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:45,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:45,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:45,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 40 proven. 669 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2020-09-24 15:59:45,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438978642] [2020-09-24 15:59:45,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:45,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:45,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441308344] [2020-09-24 15:59:45,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:45,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:45,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:45,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:45,291 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand 21 states. [2020-09-24 15:59:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:45,566 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2020-09-24 15:59:45,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 15:59:45,567 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 153 [2020-09-24 15:59:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:45,568 INFO L225 Difference]: With dead ends: 106 [2020-09-24 15:59:45,569 INFO L226 Difference]: Without dead ends: 100 [2020-09-24 15:59:45,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 15:59:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-24 15:59:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-09-24 15:59:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-24 15:59:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 101 transitions. [2020-09-24 15:59:45,576 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 101 transitions. Word has length 153 [2020-09-24 15:59:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:45,576 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 101 transitions. [2020-09-24 15:59:45,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:45,577 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 101 transitions. [2020-09-24 15:59:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:59:45,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:45,580 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:45,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:59:45,580 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:45,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:45,581 INFO L82 PathProgramCache]: Analyzing trace with hash -76242615, now seen corresponding path program 16 times [2020-09-24 15:59:45,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:45,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118174878] [2020-09-24 15:59:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 15:59:45,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-24 15:59:45,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:45,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 15:59:45,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:45,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:45,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 15:59:46,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 15:59:46,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-09-24 15:59:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:46,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 15:59:46,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 15:59:46,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:46,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 15:59:46,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:46,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:46,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 15:59:46,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:46,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:46,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:47,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 15:59:47,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:47,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:47,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 15:59:47,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:47,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:47,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 15:59:47,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:47,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:47,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 15:59:47,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:47,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:47,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:47,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:47,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:47,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:47,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:48,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:48,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:48,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:48,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,102 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,102 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:48,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:48,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:48,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:48,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:48,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:48,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:48,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:48,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:48,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:48,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:48,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,281 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,281 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:48,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:48,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:48,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:48,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,322 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,323 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:48,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:48,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:48,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:48,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 48 proven. 791 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2020-09-24 15:59:48,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118174878] [2020-09-24 15:59:48,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:48,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 15:59:48,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239464040] [2020-09-24 15:59:48,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 15:59:48,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:48,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 15:59:48,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:59:48,557 INFO L87 Difference]: Start difference. First operand 100 states and 101 transitions. Second operand 23 states. [2020-09-24 15:59:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:48,808 INFO L93 Difference]: Finished difference Result 111 states and 112 transitions. [2020-09-24 15:59:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:59:48,809 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 162 [2020-09-24 15:59:48,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:48,810 INFO L225 Difference]: With dead ends: 111 [2020-09-24 15:59:48,811 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 15:59:48,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560 [2020-09-24 15:59:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 15:59:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-09-24 15:59:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 15:59:48,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 106 transitions. [2020-09-24 15:59:48,819 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 106 transitions. Word has length 162 [2020-09-24 15:59:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:48,820 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 106 transitions. [2020-09-24 15:59:48,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 15:59:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 106 transitions. [2020-09-24 15:59:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:59:48,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:48,823 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:48,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 15:59:48,824 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:48,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:48,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1382000279, now seen corresponding path program 17 times [2020-09-24 15:59:48,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:48,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677270173] [2020-09-24 15:59:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:49,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:49,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 15:59:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:59:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 15:59:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:49,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:49,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:49,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:49,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:49,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:49,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:49,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:49,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:49,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:49,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:59:49,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-24 15:59:49,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:49,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:49,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:49,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:49,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 15:59:49,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 15:59:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-09-24 15:59:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:49,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:49,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:49,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:49,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:49,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:49,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:49,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 15:59:49,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:49,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 15:59:49,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:50,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 15:59:50,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:50,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:50,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 15:59:50,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:50,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 15:59:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,829 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:50,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:59:50,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:50,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,996 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 15:59:50,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:51,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:51,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,235 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:51,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 15:59:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:51,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:51,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:51,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:51,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:51,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:51,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:51,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:59:51,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:51,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,579 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:51,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:59:51,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:51,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:51,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:51,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:51,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:51,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:51,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:51,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:51,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 81 proven. 867 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-09-24 15:59:52,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677270173] [2020-09-24 15:59:52,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:52,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 15:59:52,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474901343] [2020-09-24 15:59:52,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 15:59:52,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:52,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 15:59:52,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:59:52,048 INFO L87 Difference]: Start difference. First operand 105 states and 106 transitions. Second operand 23 states. [2020-09-24 15:59:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:52,329 INFO L93 Difference]: Finished difference Result 116 states and 117 transitions. [2020-09-24 15:59:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:59:52,330 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 171 [2020-09-24 15:59:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:52,331 INFO L225 Difference]: With dead ends: 116 [2020-09-24 15:59:52,331 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 15:59:52,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:59:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 15:59:52,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-09-24 15:59:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-24 15:59:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions. [2020-09-24 15:59:52,337 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 171 [2020-09-24 15:59:52,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:52,338 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions. [2020-09-24 15:59:52,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 15:59:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions. [2020-09-24 15:59:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 15:59:52,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:52,341 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:52,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 15:59:52,341 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:52,341 INFO L82 PathProgramCache]: Analyzing trace with hash -869167053, now seen corresponding path program 18 times [2020-09-24 15:59:52,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:52,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776190425] [2020-09-24 15:59:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:59:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:52,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 15:59:52,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:52,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:52,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:52,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 15:59:52,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-24 15:59:52,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:59:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:52,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-09-24 15:59:52,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:59:53,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 15:59:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-09-24 15:59:53,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:53,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 15:59:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:53,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-09-24 15:59:53,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:53,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:53,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 15:59:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 15:59:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:54,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:54,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:54,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:54,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:54,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:54,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 15:59:54,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:54,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:54,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:54,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:54,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:54,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:54,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:59:54,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:54,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:54,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:54,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:54,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:54,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:54,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:54,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:55,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:55,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:55,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:55,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:55,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:55,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:55,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:55,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:55,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:55,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:55,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:55,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:55,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:55,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:55,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:55,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:55,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:55,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:55,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:55,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:55,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:55,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:55,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:55,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:55,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:55,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:55,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 180 proven. 849 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2020-09-24 15:59:55,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776190425] [2020-09-24 15:59:55,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:55,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 15:59:55,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983937214] [2020-09-24 15:59:55,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 15:59:55,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:55,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 15:59:55,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:55,563 INFO L87 Difference]: Start difference. First operand 110 states and 111 transitions. Second operand 24 states. [2020-09-24 15:59:55,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:55,943 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2020-09-24 15:59:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 15:59:55,943 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 180 [2020-09-24 15:59:55,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:55,944 INFO L225 Difference]: With dead ends: 121 [2020-09-24 15:59:55,944 INFO L226 Difference]: Without dead ends: 115 [2020-09-24 15:59:55,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 15:59:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-24 15:59:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-09-24 15:59:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-24 15:59:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 116 transitions. [2020-09-24 15:59:55,951 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 116 transitions. Word has length 180 [2020-09-24 15:59:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:55,951 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 116 transitions. [2020-09-24 15:59:55,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 15:59:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 116 transitions. [2020-09-24 15:59:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 15:59:55,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:55,954 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:55,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 15:59:55,954 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash 482986285, now seen corresponding path program 19 times [2020-09-24 15:59:55,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:55,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839618216] [2020-09-24 15:59:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-24 15:59:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:56,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:56,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:56,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 217 [2020-09-24 15:59:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-24 15:59:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-09-24 15:59:56,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 15:59:57,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-09-24 15:59:57,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-09-24 15:59:57,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 15:59:57,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 15:59:57,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 15:59:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:59:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 15:59:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:59:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:57,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 15:59:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:59:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:59:58,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 15:59:58,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:58,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:58,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:59:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:59:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:59:58,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 15:59:58,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:58,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:59:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:58,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:58,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:58,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:59:58,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:58,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:58,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:59:58,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:59:58,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,834 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:59:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:59:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:59:58,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 15:59:58,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:59:58,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:58,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:58,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:59:58,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:59:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:59,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:59:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:59,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:59:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:59:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:59:59,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:59,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:59:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 161 proven. 1022 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2020-09-24 15:59:59,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839618216] [2020-09-24 15:59:59,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:59,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 15:59:59,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497681681] [2020-09-24 15:59:59,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 15:59:59,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:59,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 15:59:59,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:59,407 INFO L87 Difference]: Start difference. First operand 115 states and 116 transitions. Second operand 25 states. [2020-09-24 15:59:59,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:59,795 INFO L93 Difference]: Finished difference Result 126 states and 127 transitions. [2020-09-24 15:59:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:59:59,796 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 189 [2020-09-24 15:59:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:59,798 INFO L225 Difference]: With dead ends: 126 [2020-09-24 15:59:59,798 INFO L226 Difference]: Without dead ends: 120 [2020-09-24 15:59:59,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 15:59:59,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-24 15:59:59,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-09-24 15:59:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-24 15:59:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2020-09-24 15:59:59,805 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 189 [2020-09-24 15:59:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:59,805 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2020-09-24 15:59:59,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 15:59:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2020-09-24 15:59:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 15:59:59,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:59,809 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:59,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 15:59:59,809 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:59,809 INFO L82 PathProgramCache]: Analyzing trace with hash 848589853, now seen corresponding path program 20 times [2020-09-24 15:59:59,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:59,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382174373] [2020-09-24 15:59:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:59:59,852 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:59:59,853 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:59:59,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-24 15:59:59,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:59:59 BoogieIcfgContainer [2020-09-24 15:59:59,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:59:59,891 INFO L168 Benchmark]: Toolchain (without parser) took 35894.99 ms. Allocated memory was 140.0 MB in the beginning and 647.5 MB in the end (delta: 507.5 MB). Free memory was 103.6 MB in the beginning and 315.9 MB in the end (delta: -212.3 MB). Peak memory consumption was 295.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:59,891 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:59:59,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.27 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:59,894 INFO L168 Benchmark]: Boogie Preprocessor took 39.97 ms. Allocated memory is still 140.0 MB. Free memory was 93.8 MB in the beginning and 92.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:59,894 INFO L168 Benchmark]: RCFGBuilder took 448.93 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 92.4 MB in the beginning and 174.1 MB in the end (delta: -81.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:59,895 INFO L168 Benchmark]: TraceAbstraction took 35008.48 ms. Allocated memory was 206.6 MB in the beginning and 647.5 MB in the end (delta: 440.9 MB). Free memory was 173.5 MB in the beginning and 315.9 MB in the end (delta: -142.4 MB). Peak memory consumption was 298.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:59,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.27 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.97 ms. Allocated memory is still 140.0 MB. Free memory was 93.8 MB in the beginning and 92.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.93 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 92.4 MB in the beginning and 174.1 MB in the end (delta: -81.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35008.48 ms. Allocated memory was 206.6 MB in the beginning and 647.5 MB in the end (delta: 440.9 MB). Free memory was 173.5 MB in the beginning and 315.9 MB in the end (delta: -142.4 MB). Peak memory consumption was 298.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int a = 20; [L13] int b = 0; [L14] CALL, EXPR sum(a, b) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND TRUE n <= 0 [L5] return m + n; [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L14] RET, EXPR sum(a, b) [L14] int result = sum(a, b); [L15] COND TRUE result == a + b [L16] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.8s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 1597 SDslu, 1893 SDs, 0 SdLazy, 835 SolverSat, 193 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 483 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2691 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 29.2s InterpolantComputationTime, 2268 NumberOfCodeBlocks, 2268 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2050 ConstructedInterpolants, 0 QuantifiedInterpolants, 710617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 4146/11210 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...