/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=WIDEST --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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:56:35,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:56:35,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:56:36,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:56:36,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:56:36,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:56:36,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:56:36,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:56:36,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:56:36,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:56:36,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:56:36,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:56:36,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:56:36,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:56:36,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:56:36,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:56:36,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:56:36,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:56:36,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:56:36,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:56:36,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:56:36,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:56:36,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:56:36,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:56:36,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:56:36,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:56:36,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:56:36,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:56:36,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:56:36,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:56:36,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:56:36,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:56:36,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:56:36,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:56:36,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:56:36,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:56:36,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:56:36,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:56:36,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:56:36,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:56:36,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:56:36,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:56:36,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:56:36,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:56:36,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:56:36,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:56:36,107 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:56:36,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:56:36,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:56:36,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:56:36,109 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:56:36,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:56:36,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:56:36,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:56:36,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:56:36,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:56:36,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:56:36,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:56:36,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:56:36,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:56:36,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:56:36,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:56:36,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:56:36,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:56:36,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:56:36,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:56:36,112 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:56:36,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:56:36,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:56:36,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:56:36,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:56:36,639 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:56:36,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 02:56:36,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3321151/a813bc36e23b4be6b3b0b43f133fa46b/FLAGc0a851981 [2020-09-25 02:56:37,356 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:56:37,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product37.cil.c [2020-09-25 02:56:37,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3321151/a813bc36e23b4be6b3b0b43f133fa46b/FLAGc0a851981 [2020-09-25 02:56:37,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3321151/a813bc36e23b4be6b3b0b43f133fa46b [2020-09-25 02:56:37,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:56:37,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:56:37,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:37,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:56:37,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:56:37,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:37" (1/1) ... [2020-09-25 02:56:37,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:37, skipping insertion in model container [2020-09-25 02:56:37,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:37" (1/1) ... [2020-09-25 02:56:37,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:56:37,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:56:38,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:38,148 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:56:38,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:38,440 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:56:38,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38 WrapperNode [2020-09-25 02:56:38,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:38,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:56:38,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:56:38,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:56:38,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... [2020-09-25 02:56:38,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:56:38,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:56:38,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:56:38,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:56:38,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:56:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:56:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:56:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:56:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:56:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:56:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:56:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:56:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:56:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:56:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:56:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:56:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:56:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:56:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:56:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:56:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:56:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:56:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:56:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:56:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:56:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:56:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:56:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:56:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:56:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:56:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:56:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:56:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:56:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:56:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:56:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:56:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:56:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:56:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:56:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:56:38,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:56:38,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:56:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:56:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:56:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:56:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:56:39,883 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:56:39,883 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:56:39,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:39 BoogieIcfgContainer [2020-09-25 02:56:39,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:56:39,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:56:39,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:56:39,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:56:39,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:56:37" (1/3) ... [2020-09-25 02:56:39,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19622766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:39, skipping insertion in model container [2020-09-25 02:56:39,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:38" (2/3) ... [2020-09-25 02:56:39,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19622766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:39, skipping insertion in model container [2020-09-25 02:56:39,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:39" (3/3) ... [2020-09-25 02:56:39,900 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2020-09-25 02:56:39,912 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:56:39,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:56:39,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:56:39,981 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:56:39,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:56:39,982 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:56:39,982 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:56:39,982 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:56:39,982 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:56:39,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:56:39,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:56:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 02:56:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:56:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:40,033 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] [2020-09-25 02:56:40,033 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:40,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1187069653, now seen corresponding path program 1 times [2020-09-25 02:56:40,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:40,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896938481] [2020-09-25 02:56:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:40,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:41,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:43,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:45,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:45,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:56:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:56:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 02:56:45,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:56:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:56:45,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 02:56:45,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:56:46,209 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:56:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:56:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:56:46,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 02:56:46,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:56:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:46,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:56:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:46,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:56:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:56:46,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:56:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:46,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:56:46,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:46,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:56:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:46,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:56:46,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:46,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:56:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:46,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:46,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:46,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:46,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:56:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:46,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:46,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:56:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:46,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:56:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:46,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:56:46,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:46,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:56:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:46,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:46,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:56:46,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:56:46,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:46,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:56:46,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896938481] [2020-09-25 02:56:46,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:56:46,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:56:46,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464206809] [2020-09-25 02:56:46,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:56:46,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:56:46,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:56:46,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:56:46,870 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 9 states. [2020-09-25 02:56:47,529 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:48,649 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:48,973 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:49,317 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:49,644 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:49,902 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:50,484 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:50,822 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:51,376 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:56:52,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:56:52,579 INFO L93 Difference]: Finished difference Result 640 states and 775 transitions. [2020-09-25 02:56:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:56:52,581 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:56:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:56:52,615 INFO L225 Difference]: With dead ends: 640 [2020-09-25 02:56:52,615 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 02:56:52,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:56:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 02:56:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 375. [2020-09-25 02:56:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 02:56:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 416 transitions. [2020-09-25 02:56:52,783 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 416 transitions. Word has length 148 [2020-09-25 02:56:52,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:56:52,793 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 416 transitions. [2020-09-25 02:56:52,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:56:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 416 transitions. [2020-09-25 02:56:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 02:56:52,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:52,807 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] [2020-09-25 02:56:52,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:56:52,807 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:52,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:52,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1084798781, now seen corresponding path program 1 times [2020-09-25 02:56:52,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:52,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762383042] [2020-09-25 02:56:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:53,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 02:56:57,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:56:57,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 02:56:57,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:56:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:56:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 02:56:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:58,205 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:56:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:56:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:56:58,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 02:56:58,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:56:58,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:56:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:58,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:56:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:58,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:58,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:56:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:58,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:56:58,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:58,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:56:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:58,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:58,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:58,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:56:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:58,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:58,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:56:58,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:56:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:56:58,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:56:58,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:56:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:56:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:58,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:58,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:58,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:56:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:58,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:56:58,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:56:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:58,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:58,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:56:58,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762383042] [2020-09-25 02:56:58,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:56:58,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:56:58,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225121743] [2020-09-25 02:56:58,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:56:58,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:56:58,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:56:58,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:56:58,768 INFO L87 Difference]: Start difference. First operand 375 states and 416 transitions. Second operand 10 states. [2020-09-25 02:56:59,391 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:00,584 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:00,906 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:01,317 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:01,672 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:02,005 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:02,774 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:03,081 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:03,441 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:04,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:04,582 INFO L93 Difference]: Finished difference Result 898 states and 1093 transitions. [2020-09-25 02:57:04,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:57:04,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-25 02:57:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:04,591 INFO L225 Difference]: With dead ends: 898 [2020-09-25 02:57:04,591 INFO L226 Difference]: Without dead ends: 638 [2020-09-25 02:57:04,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:57:04,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-09-25 02:57:04,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 528. [2020-09-25 02:57:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-09-25 02:57:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 599 transitions. [2020-09-25 02:57:04,683 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 599 transitions. Word has length 163 [2020-09-25 02:57:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:04,683 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 599 transitions. [2020-09-25 02:57:04,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:57:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 599 transitions. [2020-09-25 02:57:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 02:57:04,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:04,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:04,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:57:04,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:04,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1822348120, now seen corresponding path program 1 times [2020-09-25 02:57:04,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:04,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017017583] [2020-09-25 02:57:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:04,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:04,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:05,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:09,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-09-25 02:57:09,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:57:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:57:09,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:57:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 02:57:09,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:10,180 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:10,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 02:57:10,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:57:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:10,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:10,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:10,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:10,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:10,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:57:10,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:10,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:10,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:10,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:10,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:10,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:10,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:10,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:57:10,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:57:10,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:57:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:57:10,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:57:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:57:10,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 02:57:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:57:10,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:57:10,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:57:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:57:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 02:57:10,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:57:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:57:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:57:10,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:10,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:10,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:10,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:10,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:10,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:57:10,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:10,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:10,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:57:10,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:10,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:11,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:11,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:11,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:11,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:11,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:11,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:11,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:11,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:11,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:11,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:57:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:11,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 02:57:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:11,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:11,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:11,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:11,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:11,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 02:57:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:11,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:11,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:11,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:11,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:11,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:11,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:11,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:11,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 02:57:11,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017017583] [2020-09-25 02:57:11,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:11,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 02:57:11,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072894993] [2020-09-25 02:57:11,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:57:11,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:57:11,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:57:11,104 INFO L87 Difference]: Start difference. First operand 528 states and 599 transitions. Second operand 14 states. [2020-09-25 02:57:11,732 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:13,041 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:13,364 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:13,689 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:57:14,030 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:14,389 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 02:57:14,710 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:16,315 INFO L93 Difference]: Finished difference Result 1160 states and 1452 transitions. [2020-09-25 02:57:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 02:57:16,316 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 227 [2020-09-25 02:57:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:16,322 INFO L225 Difference]: With dead ends: 1160 [2020-09-25 02:57:16,322 INFO L226 Difference]: Without dead ends: 747 [2020-09-25 02:57:16,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:57:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-25 02:57:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 556. [2020-09-25 02:57:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-25 02:57:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 631 transitions. [2020-09-25 02:57:16,405 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 631 transitions. Word has length 227 [2020-09-25 02:57:16,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:16,406 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 631 transitions. [2020-09-25 02:57:16,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:57:16,406 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 631 transitions. [2020-09-25 02:57:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 02:57:16,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:16,410 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] [2020-09-25 02:57:16,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:57:16,411 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:16,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:16,411 INFO L82 PathProgramCache]: Analyzing trace with hash -508557297, now seen corresponding path program 1 times [2020-09-25 02:57:16,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:16,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976852311] [2020-09-25 02:57:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:16,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:16,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:19,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-25 02:57:19,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3061 [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 02:57:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:19,888 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:19,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:19,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:20,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 02:57:20,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:20,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:20,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:20,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:20,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:20,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:20,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:20,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:20,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:20,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:20,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:57:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:20,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:57:20,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:20,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:57:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:57:20,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:20,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 02:57:20,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:57:20,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:57:20,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 02:57:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:57:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:57:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:20,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 02:57:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:57:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:57:20,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:20,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:57:20,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:57:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:20,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:20,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:20,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:57:20,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:57:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:20,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:20,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:20,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:57:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:20,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:20,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:20,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:20,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:20,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:20,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:20,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976852311] [2020-09-25 02:57:20,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:20,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 02:57:20,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925564118] [2020-09-25 02:57:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:57:20,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:20,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:57:20,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:57:20,662 INFO L87 Difference]: Start difference. First operand 556 states and 631 transitions. Second operand 11 states. [2020-09-25 02:57:21,435 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:22,398 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:22,747 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:23,082 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:23,430 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:57:23,740 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:25,369 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:25,713 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:26,039 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:26,384 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:57:26,692 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190