/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:03:13,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:03:13,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:03:13,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:03:13,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:03:13,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:03:13,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:03:13,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:03:13,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:03:13,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:03:13,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:03:13,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:03:13,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:03:13,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:03:13,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:03:13,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:03:13,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:03:13,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:03:13,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:03:13,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:03:13,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:03:13,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:03:13,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:03:13,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:03:13,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:03:13,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:03:13,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:03:13,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:03:13,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:03:13,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:03:13,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:03:13,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:03:13,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:03:13,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:03:13,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:03:13,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:03:13,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:03:13,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:03:13,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:03:13,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:03:13,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:03:13,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:03:13,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:03:13,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:03:13,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:03:13,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:03:13,409 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:03:13,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:03:13,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:03:13,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:03:13,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:03:13,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:03:13,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:03:13,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:03:13,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:03:13,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:03:13,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:03:13,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:03:13,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:03:13,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:03:13,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:03:13,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:03:13,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:03:13,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:03:13,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:03:13,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:03:13,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:03:13,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:03:13,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:03:13,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:03:13,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:03:13,418 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:03:13,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:03:13,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:03:13,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:03:13,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:03:13,930 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:03:13,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-24 19:03:14,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22224e998/085f11f9c7f24932b0c21827479f05b7/FLAGb700817c6 [2020-09-24 19:03:14,666 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:03:14,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product44.cil.c [2020-09-24 19:03:14,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22224e998/085f11f9c7f24932b0c21827479f05b7/FLAGb700817c6 [2020-09-24 19:03:14,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22224e998/085f11f9c7f24932b0c21827479f05b7 [2020-09-24 19:03:14,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:03:14,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:03:14,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:14,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:03:14,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:03:14,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:14" (1/1) ... [2020-09-24 19:03:14,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:14, skipping insertion in model container [2020-09-24 19:03:14,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:03:14" (1/1) ... [2020-09-24 19:03:14,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:03:15,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:03:15,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:15,563 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:03:15,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:03:15,690 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:03:15,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15 WrapperNode [2020-09-24 19:03:15,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:03:15,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:03:15,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:03:15,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:03:15,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... [2020-09-24 19:03:15,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:03:15,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:03:15,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:03:15,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:03:15,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:03:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:03:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:03:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:03:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:03:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:03:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:03:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:03:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:03:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:03:15,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:03:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:03:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:03:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:03:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:03:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:03:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:03:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:03:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:03:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:03:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:03:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:03:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:03:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:03:15,991 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:03:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:03:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:03:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:03:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:03:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:03:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:03:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:03:15,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:03:15,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:03:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:03:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:03:15,998 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:03:15,999 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:03:16,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:03:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:03:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:03:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:03:17,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:03:17,177 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:03:17,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:03:17 BoogieIcfgContainer [2020-09-24 19:03:17,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:03:17,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:03:17,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:03:17,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:03:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:03:14" (1/3) ... [2020-09-24 19:03:17,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767358f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:03:17, skipping insertion in model container [2020-09-24 19:03:17,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:03:15" (2/3) ... [2020-09-24 19:03:17,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767358f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:03:17, skipping insertion in model container [2020-09-24 19:03:17,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:03:17" (3/3) ... [2020-09-24 19:03:17,203 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-09-24 19:03:17,217 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:03:17,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:03:17,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:03:17,301 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:03:17,301 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:03:17,301 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:03:17,301 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:03:17,301 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:03:17,302 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:03:17,302 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:03:17,303 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:03:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 19:03:17,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:03:17,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:17,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:17,378 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:17,388 INFO L82 PathProgramCache]: Analyzing trace with hash -382402386, now seen corresponding path program 1 times [2020-09-24 19:03:17,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:17,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259515709] [2020-09-24 19:03:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:18,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:18,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:18,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:03:18,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-24 19:03:18,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:03:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:03:19,270 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:19,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:19,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 19:03:19,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:19,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:03:19,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:19,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:19,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:03:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:19,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:19,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:19,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:19,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:19,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:19,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:19,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:19,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-24 19:03:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:19,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259515709] [2020-09-24 19:03:19,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:19,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:03:19,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881636627] [2020-09-24 19:03:19,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:03:19,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:19,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:03:19,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:03:19,737 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2020-09-24 19:03:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:21,216 INFO L93 Difference]: Finished difference Result 484 states and 574 transitions. [2020-09-24 19:03:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:03:21,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:03:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:21,240 INFO L225 Difference]: With dead ends: 484 [2020-09-24 19:03:21,240 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 19:03:21,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:03:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 19:03:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 257. [2020-09-24 19:03:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 19:03:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-24 19:03:21,350 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 142 [2020-09-24 19:03:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:21,351 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-24 19:03:21,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:03:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-24 19:03:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:03:21,357 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:21,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:21,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:03:21,358 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:21,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1833447387, now seen corresponding path program 1 times [2020-09-24 19:03:21,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:21,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510607973] [2020-09-24 19:03:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:21,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:03:22,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:22,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:03:22,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:03:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:22,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 19:03:22,790 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:22,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:22,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:22,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:22,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:22,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 19:03:22,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:22,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:23,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:23,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:23,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:23,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:23,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:23,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:23,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:23,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:23,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:23,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:23,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:23,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:23,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:03:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:23,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:23,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:23,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:23,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:23,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510607973] [2020-09-24 19:03:23,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:23,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:03:23,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547434910] [2020-09-24 19:03:23,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:03:23,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:23,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:03:23,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:03:23,116 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 4 states. [2020-09-24 19:03:23,869 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:24,838 INFO L93 Difference]: Finished difference Result 388 states and 435 transitions. [2020-09-24 19:03:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:03:24,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:03:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:24,847 INFO L225 Difference]: With dead ends: 388 [2020-09-24 19:03:24,847 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 19:03:24,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 19:03:24,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 247. [2020-09-24 19:03:24,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 19:03:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 265 transitions. [2020-09-24 19:03:24,920 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 265 transitions. Word has length 143 [2020-09-24 19:03:24,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:24,926 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 265 transitions. [2020-09-24 19:03:24,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:03:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 265 transitions. [2020-09-24 19:03:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:03:24,934 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:24,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:24,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:03:24,935 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:24,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1272206935, now seen corresponding path program 1 times [2020-09-24 19:03:24,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:24,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112631827] [2020-09-24 19:03:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:25,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:03:26,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-09-24 19:03:26,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:26,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:03:26,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:26,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,405 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:26,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 19:03:26,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:26,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:26,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:26,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:26,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:26,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:26,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:26,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:26,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:26,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:26,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:03:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:03:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:26,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:26,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:26,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:03:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:26,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:26,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:26,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:26,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:26,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:26,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:26,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:26,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:26,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112631827] [2020-09-24 19:03:26,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:26,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:03:26,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010578023] [2020-09-24 19:03:26,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:03:26,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:26,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:03:26,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:26,712 INFO L87 Difference]: Start difference. First operand 247 states and 265 transitions. Second operand 5 states. [2020-09-24 19:03:27,216 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:28,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:28,998 INFO L93 Difference]: Finished difference Result 591 states and 680 transitions. [2020-09-24 19:03:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:03:28,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:03:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:29,005 INFO L225 Difference]: With dead ends: 591 [2020-09-24 19:03:29,005 INFO L226 Difference]: Without dead ends: 454 [2020-09-24 19:03:29,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:03:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-24 19:03:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 368. [2020-09-24 19:03:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-24 19:03:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 403 transitions. [2020-09-24 19:03:29,090 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 403 transitions. Word has length 156 [2020-09-24 19:03:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:29,091 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 403 transitions. [2020-09-24 19:03:29,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:03:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 403 transitions. [2020-09-24 19:03:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:03:29,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:29,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:29,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:03:29,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:29,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1170641190, now seen corresponding path program 1 times [2020-09-24 19:03:29,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:29,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237505682] [2020-09-24 19:03:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:03:30,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-09-24 19:03:30,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:03:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:03:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 19:03:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,625 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:30,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:30,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:03:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:30,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:30,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:30,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:03:30,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:03:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:30,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:03:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:03:30,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:31,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237505682] [2020-09-24 19:03:31,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:31,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:03:31,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957878286] [2020-09-24 19:03:31,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:03:31,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:31,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:03:31,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:03:31,020 INFO L87 Difference]: Start difference. First operand 368 states and 403 transitions. Second operand 9 states. [2020-09-24 19:03:31,620 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:33,122 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:33,455 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:33,822 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:34,178 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:03:34,502 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:35,240 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:35,603 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:35,943 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:36,668 INFO L93 Difference]: Finished difference Result 861 states and 1012 transitions. [2020-09-24 19:03:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:03:36,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 19:03:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:36,675 INFO L225 Difference]: With dead ends: 861 [2020-09-24 19:03:36,675 INFO L226 Difference]: Without dead ends: 603 [2020-09-24 19:03:36,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:03:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-09-24 19:03:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 534. [2020-09-24 19:03:36,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-09-24 19:03:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 602 transitions. [2020-09-24 19:03:36,756 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 602 transitions. Word has length 161 [2020-09-24 19:03:36,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:36,756 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 602 transitions. [2020-09-24 19:03:36,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:03:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 602 transitions. [2020-09-24 19:03:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:03:36,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:36,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:36,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:03:36,761 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:36,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1663472360, now seen corresponding path program 1 times [2020-09-24 19:03:36,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:36,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686627339] [2020-09-24 19:03:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:37,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:37,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:37,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:03:37,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:03:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-24 19:03:37,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 19:03:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,122 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:38,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:38,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:03:38,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:38,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:38,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:38,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:38,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:38,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:03:38,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:03:38,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:38,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:38,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:03:38,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:03:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:38,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:38,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:38,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:03:38,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:03:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:38,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:38,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:38,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:38,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:38,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:03:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:38,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:38,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:03:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:38,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:38,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:38,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:38,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:03:38,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686627339] [2020-09-24 19:03:38,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:38,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:03:38,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182594561] [2020-09-24 19:03:38,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:03:38,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:38,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:03:38,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:03:38,694 INFO L87 Difference]: Start difference. First operand 534 states and 602 transitions. Second operand 10 states. [2020-09-24 19:03:40,017 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:40,366 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:40,678 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:41,018 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:41,349 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:41,660 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:42,817 INFO L93 Difference]: Finished difference Result 1131 states and 1378 transitions. [2020-09-24 19:03:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:03:42,817 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2020-09-24 19:03:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:42,823 INFO L225 Difference]: With dead ends: 1131 [2020-09-24 19:03:42,823 INFO L226 Difference]: Without dead ends: 707 [2020-09-24 19:03:42,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:03:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-09-24 19:03:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 553. [2020-09-24 19:03:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-24 19:03:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 621 transitions. [2020-09-24 19:03:42,935 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 621 transitions. Word has length 211 [2020-09-24 19:03:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:42,936 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 621 transitions. [2020-09-24 19:03:42,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:03:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 621 transitions. [2020-09-24 19:03:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:03:42,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:42,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:42,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:03:42,940 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:42,941 INFO L82 PathProgramCache]: Analyzing trace with hash -91197816, now seen corresponding path program 1 times [2020-09-24 19:03:42,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:42,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114667995] [2020-09-24 19:03:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:43,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:43,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:03:44,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,349 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:44,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:44,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 19:03:44,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:44,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:44,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:44,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:44,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:44,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:03:44,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:03:44,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:44,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:03:44,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:44,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:03:44,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:44,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:44,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:03:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:44,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:44,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:44,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:44,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:44,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:44,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:03:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:44,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:44,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:03:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:44,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:44,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:44,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:44,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:44,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:44,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:03:45,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114667995] [2020-09-24 19:03:45,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:45,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:03:45,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681892594] [2020-09-24 19:03:45,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:03:45,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:45,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:03:45,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:03:45,036 INFO L87 Difference]: Start difference. First operand 553 states and 621 transitions. Second operand 9 states. [2020-09-24 19:03:46,401 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:46,698 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:47,020 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:47,329 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:47,604 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:48,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:48,752 INFO L93 Difference]: Finished difference Result 1168 states and 1413 transitions. [2020-09-24 19:03:48,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:03:48,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2020-09-24 19:03:48,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:48,758 INFO L225 Difference]: With dead ends: 1168 [2020-09-24 19:03:48,758 INFO L226 Difference]: Without dead ends: 725 [2020-09-24 19:03:48,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:03:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-09-24 19:03:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 565. [2020-09-24 19:03:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-24 19:03:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 633 transitions. [2020-09-24 19:03:48,831 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 633 transitions. Word has length 211 [2020-09-24 19:03:48,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:48,831 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 633 transitions. [2020-09-24 19:03:48,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:03:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 633 transitions. [2020-09-24 19:03:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:03:48,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:48,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:48,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:03:48,836 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:48,836 INFO L82 PathProgramCache]: Analyzing trace with hash 581523627, now seen corresponding path program 1 times [2020-09-24 19:03:48,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:48,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801068998] [2020-09-24 19:03:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:48,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:49,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:49,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:49,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:03:49,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 19:03:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,220 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:50,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 19:03:50,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:03:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:50,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:50,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 19:03:50,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:03:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:03:50,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:50,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:03:50,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:50,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:50,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:03:50,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:03:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:50,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:50,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:03:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:50,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:03:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:50,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:50,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:50,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:50,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:50,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:50,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:03:50,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801068998] [2020-09-24 19:03:50,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:50,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:03:50,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715792498] [2020-09-24 19:03:50,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:03:50,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:50,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:03:50,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:03:50,873 INFO L87 Difference]: Start difference. First operand 565 states and 633 transitions. Second operand 7 states. [2020-09-24 19:03:51,381 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:52,204 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:54,771 INFO L93 Difference]: Finished difference Result 1731 states and 2113 transitions. [2020-09-24 19:03:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:03:54,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-09-24 19:03:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:54,782 INFO L225 Difference]: With dead ends: 1731 [2020-09-24 19:03:54,783 INFO L226 Difference]: Without dead ends: 1276 [2020-09-24 19:03:54,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:03:54,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2020-09-24 19:03:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1066. [2020-09-24 19:03:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-24 19:03:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1216 transitions. [2020-09-24 19:03:54,943 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1216 transitions. Word has length 211 [2020-09-24 19:03:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:54,943 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 1216 transitions. [2020-09-24 19:03:54,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:03:54,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1216 transitions. [2020-09-24 19:03:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 19:03:54,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:54,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:54,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:03:54,948 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:54,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1217918869, now seen corresponding path program 1 times [2020-09-24 19:03:54,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:54,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625560947] [2020-09-24 19:03:54,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-24 19:03:56,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:56,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-24 19:03:56,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:03:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:03:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-24 19:03:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,326 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:56,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:56,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 19:03:56,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:03:56,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:56,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:56,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:56,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:56,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:56,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:56,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:56,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:56,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:56,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:56,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:56,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:03:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:56,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:56,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:03:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:03:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:56,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:56,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:03:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:03:56,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:56,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 19:03:56,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 19:03:56,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:56,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:56,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:56,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:56,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:56,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:56,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:56,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:56,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:56,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:56,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:03:57,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:03:57,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:03:57,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:57,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:03:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:03:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:03:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:57,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:57,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:03:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:57,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:03:57,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:57,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:57,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:57,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:03:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:57,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:57,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:57,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:57,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:57,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:57,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:03:57,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625560947] [2020-09-24 19:03:57,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:57,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:03:57,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646698198] [2020-09-24 19:03:57,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:03:57,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:57,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:03:57,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:03:57,123 INFO L87 Difference]: Start difference. First operand 1066 states and 1216 transitions. Second operand 11 states. [2020-09-24 19:03:57,656 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:58,902 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:59,220 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:59,549 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:59,865 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:04:00,169 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:04:00,462 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:00,751 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:04:01,199 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187