/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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/fibo_2calls_20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:30:21,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:30:21,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:30:21,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:30:21,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:30:21,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:30:21,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:30:21,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:30:21,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:30:21,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:30:21,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:30:21,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:30:21,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:30:21,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:30:21,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:30:21,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:30:21,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:30:21,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:30:21,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:30:21,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:30:21,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:30:21,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:30:21,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:30:21,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:30:21,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:30:21,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:30:21,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:30:21,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:30:21,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:30:21,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:30:21,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:30:21,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:30:21,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:30:21,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:30:21,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:30:21,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:30:21,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:30:21,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:30:21,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:30:21,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:30:21,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:30:21,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:30:21,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:30:21,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:30:21,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:30:21,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:30:21,462 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:30:21,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:30:21,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:30:21,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:30:21,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:30:21,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:30:21,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:30:21,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:30:21,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:30:21,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:30:21,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:30:21,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:30:21,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:30:21,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:30:21,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:30:21,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:30:21,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:30:21,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:30:21,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:30:21,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:30:21,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:30:21,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:30:21,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:30:21,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:30:21,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:30:21,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:30:21,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:30:21,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:30:21,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:30:21,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:30:21,957 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:30:21,958 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_20-1.c [2020-09-25 14:30:22,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51a09121d/a2dd496cb9fb42ce9079d32d83ae7eb0/FLAGd7f8bf5e1 [2020-09-25 14:30:22,512 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:30:22,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_20-1.c [2020-09-25 14:30:22,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51a09121d/a2dd496cb9fb42ce9079d32d83ae7eb0/FLAGd7f8bf5e1 [2020-09-25 14:30:22,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51a09121d/a2dd496cb9fb42ce9079d32d83ae7eb0 [2020-09-25 14:30:22,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:30:22,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:30:22,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:30:22,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:30:22,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:30:22,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:30:22" (1/1) ... [2020-09-25 14:30:22,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:22, skipping insertion in model container [2020-09-25 14:30:22,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:30:22" (1/1) ... [2020-09-25 14:30:22,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:30:22,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:30:23,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:30:23,192 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:30:23,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:30:23,224 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:30:23,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23 WrapperNode [2020-09-25 14:30:23,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:30:23,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:30:23,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:30:23,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:30:23,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... [2020-09-25 14:30:23,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:30:23,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:30:23,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:30:23,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:30:23,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:30:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:30:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:30:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 14:30:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 14:30:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:30:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:30:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:30:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 14:30:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 14:30:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:30:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:30:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:30:23,700 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:30:23,701 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:30:23,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:30:23 BoogieIcfgContainer [2020-09-25 14:30:23,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:30:23,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:30:23,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:30:23,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:30:23,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:30:22" (1/3) ... [2020-09-25 14:30:23,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:30:23, skipping insertion in model container [2020-09-25 14:30:23,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:30:23" (2/3) ... [2020-09-25 14:30:23,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:30:23, skipping insertion in model container [2020-09-25 14:30:23,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:30:23" (3/3) ... [2020-09-25 14:30:23,742 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-1.c [2020-09-25 14:30:23,760 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:30:23,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:30:23,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:30:23,825 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:30:23,825 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:30:23,825 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:30:23,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:30:23,826 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:30:23,826 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:30:23,826 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:30:23,826 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:30:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 14:30:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 14:30:23,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:23,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:23,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:23,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 14:30:23,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:23,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932208191] [2020-09-25 14:30:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:23,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:30:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 14:30:24,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:30:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:24,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:30:24,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:24,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:24,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:30:24,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:30:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:30:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:30:24,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932208191] [2020-09-25 14:30:24,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:30:24,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:30:24,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050836515] [2020-09-25 14:30:24,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:30:24,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:24,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:30:24,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:30:24,405 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 14:30:24,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:24,502 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 14:30:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:30:24,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 14:30:24,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:24,516 INFO L225 Difference]: With dead ends: 58 [2020-09-25 14:30:24,517 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 14:30:24,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:30:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 14:30:24,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 14:30:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 14:30:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 14:30:24,577 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 14:30:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:24,578 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 14:30:24,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:30:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 14:30:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 14:30:24,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:24,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:24,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:30:24,582 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:24,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:24,583 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 14:30:24,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:24,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425545844] [2020-09-25 14:30:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 14:30:24,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:24,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 14:30:24,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:24,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:24,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:30:24,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:24,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:24,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:24,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 14:30:24,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:24,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:24,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:30:24,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425545844] [2020-09-25 14:30:24,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:30:24,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:30:24,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093958521] [2020-09-25 14:30:24,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:30:24,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:24,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:30:24,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:30:24,878 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 14:30:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:24,944 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 14:30:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:30:24,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 14:30:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:24,947 INFO L225 Difference]: With dead ends: 50 [2020-09-25 14:30:24,947 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 14:30:24,948 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 [2020-09-25 14:30:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 14:30:24,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 14:30:24,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 14:30:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 14:30:24,959 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 14:30:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:24,960 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 14:30:24,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:30:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 14:30:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 14:30:24,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:24,962 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:24,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:30:24,963 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:24,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 14:30:24,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:24,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770074502] [2020-09-25 14:30:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:24,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:25,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:25,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:25,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:26,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 14:30:26,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:30:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1929 [2020-09-25 14:30:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:26,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:26,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:30:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:26,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:26,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:26,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:26,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:26,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:26,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:26,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:27,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:30:27,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 14:30:27,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:27,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:27,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:30:27,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:27,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:27,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:27,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:27,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:30:27,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770074502] [2020-09-25 14:30:27,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:30:27,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:30:27,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079927020] [2020-09-25 14:30:27,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:30:27,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:27,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:30:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:30:27,220 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 14:30:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:27,355 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 14:30:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:30:27,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 14:30:27,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:27,358 INFO L225 Difference]: With dead ends: 58 [2020-09-25 14:30:27,358 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 14:30:27,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 14:30:27,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 14:30:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 14:30:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 14:30:27,370 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 14:30:27,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:27,370 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 14:30:27,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:30:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 14:30:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:30:27,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:27,373 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:27,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:30:27,373 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:27,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:27,374 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 14:30:27,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:27,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237906917] [2020-09-25 14:30:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 14:30:29,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:30:29,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1713 [2020-09-25 14:30:29,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:29,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:30:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:29,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:29,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:30:29,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:29,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:29,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-09-25 14:30:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:30:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:29,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:29,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:30:29,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:29,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:29,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:29,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 14:30:29,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:30:29,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:30:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 14:30:29,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237906917] [2020-09-25 14:30:29,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:30:29,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:30:29,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182369609] [2020-09-25 14:30:29,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:30:29,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:29,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:30:29,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:30:29,804 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 14:30:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:29,963 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2020-09-25 14:30:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:30:29,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 14:30:29,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:29,966 INFO L225 Difference]: With dead ends: 70 [2020-09-25 14:30:29,966 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 14:30:29,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:29,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 14:30:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2020-09-25 14:30:29,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 14:30:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2020-09-25 14:30:29,991 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 35 [2020-09-25 14:30:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:29,991 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2020-09-25 14:30:29,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:30:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2020-09-25 14:30:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 14:30:30,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:30,001 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:30,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:30:30,001 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:30,004 INFO L82 PathProgramCache]: Analyzing trace with hash -2026330267, now seen corresponding path program 1 times [2020-09-25 14:30:30,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:30,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184181685] [2020-09-25 14:30:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:30,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:30,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:35,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 14:30:35,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:30:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:30:35,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:35,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:35,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:35,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:35,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:35,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:35,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:35,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:35,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:35,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:35,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:35,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:36,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:30:36,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:30:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1704 [2020-09-25 14:30:36,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:36,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:30:36,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:36,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:36,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:36,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:36,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 14:30:36,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:36,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:30:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:36,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:36,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:30:36,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:36,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:36,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:36,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:36,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:36,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:36,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:36,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:36,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:36,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:36,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:36,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:36,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:36,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:30:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:36,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 14:30:36,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184181685] [2020-09-25 14:30:36,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:36,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:30:36,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194256457] [2020-09-25 14:30:36,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:30:36,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:36,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:30:36,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:30:36,921 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 7 states. [2020-09-25 14:30:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:37,032 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2020-09-25 14:30:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:30:37,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 14:30:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:37,035 INFO L225 Difference]: With dead ends: 72 [2020-09-25 14:30:37,035 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 14:30:37,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 14:30:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2020-09-25 14:30:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 14:30:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 14:30:37,046 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 51 [2020-09-25 14:30:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:37,047 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 14:30:37,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:30:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 14:30:37,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 14:30:37,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:37,049 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:37,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:30:37,049 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:37,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 14:30:37,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:37,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363447165] [2020-09-25 14:30:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:37,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:42,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 14:30:42,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 14:30:42,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:30:42,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:42,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 14:30:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:42,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:42,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:42,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:42,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:42,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:42,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:42,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:42,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:44,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:47,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:30:47,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 14:30:47,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:30:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:47,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:47,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:30:47,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:47,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:47,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:47,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:30:47,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:47,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:30:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:30:47,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 14:30:47,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:30:47,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:47,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:30:47,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:47,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:47,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:30:47,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:30:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:47,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:47,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:30:47,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:47,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:47,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:30:47,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 14:30:47,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363447165] [2020-09-25 14:30:47,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:47,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:30:47,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343282170] [2020-09-25 14:30:47,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:30:47,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:47,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:30:47,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:30:47,390 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 10 states. [2020-09-25 14:30:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:47,732 INFO L93 Difference]: Finished difference Result 128 states and 175 transitions. [2020-09-25 14:30:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:30:47,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-09-25 14:30:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:47,734 INFO L225 Difference]: With dead ends: 128 [2020-09-25 14:30:47,734 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 14:30:47,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:30:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 14:30:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-09-25 14:30:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 14:30:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2020-09-25 14:30:47,749 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 95 transitions. Word has length 67 [2020-09-25 14:30:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:47,750 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 95 transitions. [2020-09-25 14:30:47,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:30:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2020-09-25 14:30:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:30:47,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:47,754 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:47,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:30:47,754 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:47,755 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 14:30:47,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:47,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442049203] [2020-09-25 14:30:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:47,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:47,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:49,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:49,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:51,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:51,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 14:30:52,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:30:52,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:30:52,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:52,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:30:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:30:52,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:52,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:30:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:52,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:52,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:30:52,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:30:52,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:52,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:52,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:30:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:52,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:53,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:53,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:56,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:56,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:57,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:57,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:57,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:30:57,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 14:30:57,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:30:57,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:57,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:57,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:30:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:30:57,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 14:30:57,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:57,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:57,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:58,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:30:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 14:30:58,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:30:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 14:30:58,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:30:58,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:58,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:30:58,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:58,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:58,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:58,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:30:58,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:30:58,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:30:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:58,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:30:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:30:58,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:58,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 14:30:58,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:30:58,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:30:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:30:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:30:58,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:30:58,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:58,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:30:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:30:58,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:30:58,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:30:58,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:30:58,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:30:58,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:30:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:30:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:30:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:30:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:30:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 14:30:58,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442049203] [2020-09-25 14:30:58,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:30:58,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:30:58,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199690740] [2020-09-25 14:30:58,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:30:58,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:30:58,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:30:58,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:30:58,201 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand 9 states. [2020-09-25 14:30:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:30:58,442 INFO L93 Difference]: Finished difference Result 113 states and 152 transitions. [2020-09-25 14:30:58,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:30:58,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 14:30:58,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:30:58,448 INFO L225 Difference]: With dead ends: 113 [2020-09-25 14:30:58,448 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 14:30:58,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:30:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 14:30:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2020-09-25 14:30:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 14:30:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2020-09-25 14:30:58,466 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 69 [2020-09-25 14:30:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:30:58,467 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2020-09-25 14:30:58,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:30:58,467 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2020-09-25 14:30:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 14:30:58,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:30:58,469 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:30:58,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:30:58,470 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:30:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:30:58,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2125934686, now seen corresponding path program 2 times [2020-09-25 14:30:58,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:30:58,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961327932] [2020-09-25 14:30:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:30:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:30:58,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:58,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:59,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:30:59,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:01,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:31:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:31:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:31:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:03,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:03,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:31:03,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:03,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:03,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:03,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 14:31:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:31:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:31:08,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:31:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:31:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 14:31:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 14:31:08,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:31:08,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 14:31:08,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:31:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:31:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:31:08,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:31:08,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:31:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:31:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:31:08,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:08,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:31:08,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:31:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:31:08,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:31:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:31:08,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:31:08,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 14:31:08,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:31:08,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:31:08,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:31:08,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:08,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:31:08,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:31:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:31:08,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:31:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:08,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:08,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:08,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:08,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:31:08,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:08,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:08,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:31:08,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:08,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:31:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 14:31:08,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961327932] [2020-09-25 14:31:08,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:31:08,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:31:08,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644791490] [2020-09-25 14:31:08,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:31:08,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:31:08,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:31:08,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:31:08,998 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand 10 states. [2020-09-25 14:31:09,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:31:09,202 INFO L93 Difference]: Finished difference Result 212 states and 327 transitions. [2020-09-25 14:31:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:31:09,205 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-25 14:31:09,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:31:09,207 INFO L225 Difference]: With dead ends: 212 [2020-09-25 14:31:09,208 INFO L226 Difference]: Without dead ends: 124 [2020-09-25 14:31:09,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:31:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-25 14:31:09,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-25 14:31:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 14:31:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2020-09-25 14:31:09,228 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 69 [2020-09-25 14:31:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:31:09,228 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2020-09-25 14:31:09,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:31:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2020-09-25 14:31:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 14:31:09,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:31:09,231 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:31:09,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:31:09,231 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:31:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:31:09,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1641825993, now seen corresponding path program 1 times [2020-09-25 14:31:09,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:31:09,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513072476] [2020-09-25 14:31:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:31:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:09,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:10,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:10,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:10,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:10,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:11,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:11,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:11,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:14,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 14:31:14,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 14:31:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:31:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:31:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:14,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 14:31:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:14,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:15,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:16,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:16,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:19,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 14:31:19,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 14:31:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:31:19,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:20,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2044 [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:21,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:21,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:31:21,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:21,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 14:31:21,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:21,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:21,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:31:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 14:31:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:31:21,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:31:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:21,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:21,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:21,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:31:21,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:21,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:21,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 14:31:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:31:21,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:31:21,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:21,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:31:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:31:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 14:31:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:21,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:31:21,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:31:21,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:31:21,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:31:21,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:31:21,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:31:21,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:31:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:31:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:31:21,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:31:21,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 14:31:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:31:21,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:31:22,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking...