/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:59:24,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:59:24,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:59:24,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:59:24,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:59:24,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:59:24,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:59:24,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:59:24,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:59:24,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:59:24,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:59:24,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:59:24,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:59:24,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:59:24,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:59:24,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:59:24,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:59:24,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:59:24,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:59:24,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:59:24,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:59:24,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:59:24,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:59:24,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:59:24,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:59:24,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:59:24,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:59:24,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:59:24,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:59:24,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:59:24,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:59:24,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:59:24,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:59:24,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:59:24,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:59:24,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:59:24,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:59:24,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:59:24,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:59:24,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:59:24,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:59:24,519 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 17:59:24,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:59:24,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:59:24,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:59:24,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:59:24,568 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:59:24,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:59:24,569 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:59:24,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:59:24,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:59:24,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:59:24,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:59:24,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:59:24,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:59:24,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:59:24,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:59:24,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:59:24,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:59:24,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:59:24,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:59:24,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:59:24,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:59:24,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:59:24,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:59:24,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:59:24,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:59:24,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:59:24,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:59:24,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:59:24,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:59:24,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 17:59:25,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:59:25,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:59:25,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:59:25,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:59:25,101 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:59:25,102 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-24 17:59:25,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/096770692/dff194351b8849899f7c3e1944d5af7e/FLAGc62b5fea2 [2020-09-24 17:59:25,752 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:59:25,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-24 17:59:25,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/096770692/dff194351b8849899f7c3e1944d5af7e/FLAGc62b5fea2 [2020-09-24 17:59:26,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/096770692/dff194351b8849899f7c3e1944d5af7e [2020-09-24 17:59:26,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:59:26,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:59:26,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:26,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:59:26,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:59:26,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26, skipping insertion in model container [2020-09-24 17:59:26,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:59:26,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:59:26,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:26,718 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:59:26,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:59:26,842 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:59:26,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26 WrapperNode [2020-09-24 17:59:26,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:59:26,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:59:26,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:59:26,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:59:26,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (1/1) ... [2020-09-24 17:59:26,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:59:26,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:59:26,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:59:26,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:59:26,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (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 17:59:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:59:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:59:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:59:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:59:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:59:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:59:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:59:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:59:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:59:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:59:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:59:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:59:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:59:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 17:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:59:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:59:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:59:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:59:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:59:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:59:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:59:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:59:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:59:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:59:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:59:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:59:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:59:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:59:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:59:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:59:28,139 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:59:28,140 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:59:28,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:28 BoogieIcfgContainer [2020-09-24 17:59:28,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:59:28,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:59:28,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:59:28,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:59:28,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:59:26" (1/3) ... [2020-09-24 17:59:28,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db68fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:28, skipping insertion in model container [2020-09-24 17:59:28,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:59:26" (2/3) ... [2020-09-24 17:59:28,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db68fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:59:28, skipping insertion in model container [2020-09-24 17:59:28,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:59:28" (3/3) ... [2020-09-24 17:59:28,165 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-09-24 17:59:28,176 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:59:28,189 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:59:28,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:59:28,242 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:59:28,242 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:59:28,242 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:59:28,242 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:59:28,243 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:59:28,243 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:59:28,243 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:59:28,243 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:59:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-24 17:59:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:59:28,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:28,292 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] [2020-09-24 17:59:28,292 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:28,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:28,300 INFO L82 PathProgramCache]: Analyzing trace with hash -757984097, now seen corresponding path program 1 times [2020-09-24 17:59:28,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:28,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595638192] [2020-09-24 17:59:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:31,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:33,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:33,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:33,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:59:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-24 17:59:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:59:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:59:34,119 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:34,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:34,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 17:59:34,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:34,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:34,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:34,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:34,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:34,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:34,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:34,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:34,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:34,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:34,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:34,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:59:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:34,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:59:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:34,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:34,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:34,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:34,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:34,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:34,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:34,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:34,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:34,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:34,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:34,448 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 17:59:34,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595638192] [2020-09-24 17:59:34,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:34,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:59:34,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083013524] [2020-09-24 17:59:34,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:59:34,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:34,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:59:34,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:34,491 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 4 states. [2020-09-24 17:59:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:35,963 INFO L93 Difference]: Finished difference Result 554 states and 656 transitions. [2020-09-24 17:59:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:59:35,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:59:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:35,987 INFO L225 Difference]: With dead ends: 554 [2020-09-24 17:59:35,987 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 17:59:35,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:59:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 17:59:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 294. [2020-09-24 17:59:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-24 17:59:36,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 322 transitions. [2020-09-24 17:59:36,133 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 322 transitions. Word has length 148 [2020-09-24 17:59:36,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:36,134 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 322 transitions. [2020-09-24 17:59:36,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:59:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 322 transitions. [2020-09-24 17:59:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:59:36,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:36,140 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] [2020-09-24 17:59:36,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:59:36,140 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:36,141 INFO L82 PathProgramCache]: Analyzing trace with hash 764850235, now seen corresponding path program 1 times [2020-09-24 17:59:36,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:36,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145608863] [2020-09-24 17:59:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:36,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:36,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:37,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:38,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:39,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:59:41,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:59:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 17:59:41,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:41,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:59:41,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:59:41,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:41,554 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:41,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 17:59:41,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:41,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:41,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:41,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:41,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:41,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:59:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:41,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:41,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:41,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:41,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:41,795 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 17:59:41,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145608863] [2020-09-24 17:59:41,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:41,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:59:41,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928193448] [2020-09-24 17:59:41,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:59:41,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:41,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:59:41,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:59:41,799 INFO L87 Difference]: Start difference. First operand 294 states and 322 transitions. Second operand 5 states. [2020-09-24 17:59:42,384 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:59:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:43,571 INFO L93 Difference]: Finished difference Result 479 states and 547 transitions. [2020-09-24 17:59:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:59:43,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:59:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:43,576 INFO L225 Difference]: With dead ends: 479 [2020-09-24 17:59:43,576 INFO L226 Difference]: Without dead ends: 334 [2020-09-24 17:59:43,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 17:59:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-24 17:59:43,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 284. [2020-09-24 17:59:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-24 17:59:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-24 17:59:43,628 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 149 [2020-09-24 17:59:43,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:43,629 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-24 17:59:43,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:59:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-24 17:59:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 17:59:43,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:43,633 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, 1] [2020-09-24 17:59:43,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:59:43,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 938731103, now seen corresponding path program 1 times [2020-09-24 17:59:43,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:43,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988291014] [2020-09-24 17:59:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:43,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:43,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:45,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:48,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:48,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 17:59:48,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 17:59:48,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 17:59:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:59:48,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:49,038 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:49,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 17:59:49,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:49,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:49,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:49,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:49,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:49,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:49,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:49,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:49,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:49,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:49,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:49,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:49,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:59:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:59:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:49,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:49,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:59:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:49,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:49,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:49,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:49,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:49,279 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 17:59:49,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988291014] [2020-09-24 17:59:49,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:49,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:59:49,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913153796] [2020-09-24 17:59:49,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:59:49,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:49,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:59:49,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:59:49,285 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 6 states. [2020-09-24 17:59:49,822 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:51,115 INFO L93 Difference]: Finished difference Result 526 states and 612 transitions. [2020-09-24 17:59:51,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:59:51,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 17:59:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:51,119 INFO L225 Difference]: With dead ends: 526 [2020-09-24 17:59:51,120 INFO L226 Difference]: Without dead ends: 357 [2020-09-24 17:59:51,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:59:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-24 17:59:51,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 284. [2020-09-24 17:59:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-24 17:59:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 308 transitions. [2020-09-24 17:59:51,172 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 308 transitions. Word has length 162 [2020-09-24 17:59:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:51,173 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 308 transitions. [2020-09-24 17:59:51,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:59:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 308 transitions. [2020-09-24 17:59:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 17:59:51,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:51,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:59:51,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:59:51,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:51,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1308377398, now seen corresponding path program 1 times [2020-09-24 17:59:51,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:51,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628360830] [2020-09-24 17:59:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:51,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:51,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:52,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:53,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:55,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 17:59:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:59:56,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,604 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:56,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 17:59:56,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:56,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:56,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:56,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:59:56,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:56,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:56,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:56,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:56,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:56,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:56,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:59:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:56,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:56,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:59:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 17:59:56,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:59:56,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:59:56,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:56,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:59:56,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:59:56,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 17:59:56,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 17:59:56,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:56,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 17:59:56,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:59:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:56,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:56,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:59:56,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:59:56,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:59:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:59:56,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:59:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:57,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:57,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:57,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:57,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:59:57,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:57,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:57,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:57,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 17:59:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:57,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:57,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:57,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:57,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:57,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 17:59:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:57,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:57,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:59:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:57,223 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 17:59:57,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628360830] [2020-09-24 17:59:57,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:57,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:59:57,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754615084] [2020-09-24 17:59:57,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:59:57,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:57,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:59:57,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:59:57,226 INFO L87 Difference]: Start difference. First operand 284 states and 308 transitions. Second operand 9 states. [2020-09-24 17:59:57,971 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:59,703 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:00:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:01,084 INFO L93 Difference]: Finished difference Result 720 states and 862 transitions. [2020-09-24 18:00:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 18:00:01,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-24 18:00:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:01,090 INFO L225 Difference]: With dead ends: 720 [2020-09-24 18:00:01,091 INFO L226 Difference]: Without dead ends: 551 [2020-09-24 18:00:01,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-24 18:00:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-09-24 18:00:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 410. [2020-09-24 18:00:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-24 18:00:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 443 transitions. [2020-09-24 18:00:01,153 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 443 transitions. Word has length 180 [2020-09-24 18:00:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:01,154 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 443 transitions. [2020-09-24 18:00:01,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:00:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 443 transitions. [2020-09-24 18:00:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 18:00:01,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:01,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:00:01,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:00:01,158 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:01,158 INFO L82 PathProgramCache]: Analyzing trace with hash 937711856, now seen corresponding path program 1 times [2020-09-24 18:00:01,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:01,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514651888] [2020-09-24 18:00:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:02,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:02,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 18:00:06,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:00:06,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-24 18:00:06,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:00:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 18:00:06,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 18:00:06,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,560 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:00:06,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:00:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:06,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:06,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:00:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:06,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:06,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:00:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:00:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:00:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:00:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:00:06,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:06,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:06,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:06,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:06,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 18:00:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 18:00:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 18:00:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 18:00:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:06,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:00:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:06,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:06,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:00:06,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:00:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 18:00:06,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:06,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:00:06,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:00:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:00:07,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:00:07,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:00:07,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:00:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:00:07,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:00:07,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:00:07,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:00:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:00:07,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:07,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:00:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:07,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:07,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 18:00:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 18:00:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:07,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:07,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:07,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:07,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:00:07,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:00:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:07,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:07,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:07,158 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 18:00:07,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514651888] [2020-09-24 18:00:07,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:07,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:00:07,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630420872] [2020-09-24 18:00:07,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:00:07,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:07,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:00:07,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:00:07,160 INFO L87 Difference]: Start difference. First operand 410 states and 443 transitions. Second operand 11 states. [2020-09-24 18:00:07,756 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:00:09,339 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:00:09,635 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:00:10,237 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 18:00:10,542 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:00:10,949 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:00:11,288 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:00:11,575 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:00:11,877 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190