/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=DEEPEST --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_spec4_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:46:41,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:46:41,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:46:41,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:46:41,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:46:41,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:46:41,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:46:41,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:46:41,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:46:41,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:46:41,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:46:41,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:46:41,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:46:41,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:46:41,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:46:41,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:46:41,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:46:41,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:46:41,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:46:41,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:46:41,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:46:41,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:46:41,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:46:41,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:46:41,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:46:41,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:46:41,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:46:41,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:46:41,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:46:41,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:46:41,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:46:41,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:46:41,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:46:41,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:46:41,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:46:41,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:46:41,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:46:41,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:46:41,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:46:41,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:46:41,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:46:41,506 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 00:46:41,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:46:41,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:46:41,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:46:41,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:46:41,567 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:46:41,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:46:41,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:46:41,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:46:41,569 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:46:41,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:46:41,569 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:46:41,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:46:41,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:46:41,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:46:41,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:46:41,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:46:41,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:46:41,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:46:41,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:46:41,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:46:41,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:46:41,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:46:41,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:46:41,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:46:41,573 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:46:42,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:46:42,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:46:42,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:46:42,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:46:42,142 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:46:42,143 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 00:46:42,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bbfda8ef/65a657308cb14dfea95c4aa149e01622/FLAG13a1d536e [2020-09-25 00:46:42,847 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:46:42,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product59.cil.c [2020-09-25 00:46:42,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bbfda8ef/65a657308cb14dfea95c4aa149e01622/FLAG13a1d536e [2020-09-25 00:46:43,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bbfda8ef/65a657308cb14dfea95c4aa149e01622 [2020-09-25 00:46:43,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:46:43,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:46:43,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:43,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:46:43,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:46:43,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:43,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f389357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43, skipping insertion in model container [2020-09-25 00:46:43,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:43,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:46:43,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:46:43,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:43,832 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:46:43,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:46:43,958 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:46:43,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43 WrapperNode [2020-09-25 00:46:43,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:46:43,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:46:43,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:46:43,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:46:43,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:43,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:43,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:43,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:44,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:44,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:44,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (1/1) ... [2020-09-25 00:46:44,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:46:44,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:46:44,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:46:44,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:46:44,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (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 00:46:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:46:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:46:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:46:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:46:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:46:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:46:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:46:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:46:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:46:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:46:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:46:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:46:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:46:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:46:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:46:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:46:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:46:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:46:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:46:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:46:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:46:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:46:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:46:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:46:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:46:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:46:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:46:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:46:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:46:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:46:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:46:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:46:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:46:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:46:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:46:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:46:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:46:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:46:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:46:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:46:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:46:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:46:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:46:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:46:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:46:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:46:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:46:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:46:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:46:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:46:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:46:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:46:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:46:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:46:45,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:46:45,470 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:46:45,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:45 BoogieIcfgContainer [2020-09-25 00:46:45,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:46:45,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:46:45,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:46:45,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:46:45,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:46:43" (1/3) ... [2020-09-25 00:46:45,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6ab864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:45, skipping insertion in model container [2020-09-25 00:46:45,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:46:43" (2/3) ... [2020-09-25 00:46:45,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6ab864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:46:45, skipping insertion in model container [2020-09-25 00:46:45,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:46:45" (3/3) ... [2020-09-25 00:46:45,489 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-09-25 00:46:45,503 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:46:45,516 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:46:45,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:46:45,580 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:46:45,581 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:46:45,581 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:46:45,581 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:46:45,581 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:46:45,581 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:46:45,582 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:46:45,582 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:46:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-09-25 00:46:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:46:45,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:45,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:45,636 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:45,645 INFO L82 PathProgramCache]: Analyzing trace with hash 344061342, now seen corresponding path program 1 times [2020-09-25 00:46:45,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:45,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661206226] [2020-09-25 00:46:45,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:46,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:48,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:46:51,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:46:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 00:46:51,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:51,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:46:51,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:46:51,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 00:46:51,697 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:51,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:51,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 00:46:51,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:51,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:51,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:51,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:51,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:51,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:51,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:51,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:51,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:51,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:51,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:46:51,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:51,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:51,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:51,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:51,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:51,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:51,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:51,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:46:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:51,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:51,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:51,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:51,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:51,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:51,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:51,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:51,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:46:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:52,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:52,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:52,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:52,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:46:52,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:52,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:52,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:52,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:52,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:52,088 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 00:46:52,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661206226] [2020-09-25 00:46:52,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:52,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:46:52,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882841494] [2020-09-25 00:46:52,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:46:52,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:52,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:46:52,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:46:52,130 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 8 states. [2020-09-25 00:46:52,915 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:54,117 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:54,493 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:54,843 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:55,211 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:55,521 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:56,448 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:56,741 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:57,171 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:58,493 INFO L93 Difference]: Finished difference Result 662 states and 819 transitions. [2020-09-25 00:46:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:46:58,496 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:46:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:58,525 INFO L225 Difference]: With dead ends: 662 [2020-09-25 00:46:58,525 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 00:46:58,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:46:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 00:46:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 389. [2020-09-25 00:46:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-25 00:46:58,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 445 transitions. [2020-09-25 00:46:58,766 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 445 transitions. Word has length 142 [2020-09-25 00:46:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:58,768 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 445 transitions. [2020-09-25 00:46:58,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 445 transitions. [2020-09-25 00:46:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:46:58,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:58,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:58,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:46:58,792 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:58,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:58,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1938966038, now seen corresponding path program 1 times [2020-09-25 00:46:58,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:58,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629603677] [2020-09-25 00:46:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:59,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:03,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:03,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 00:47:03,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:47:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 00:47:03,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:47:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 00:47:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:47:03,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,246 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:04,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:47:04,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:04,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:04,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:04,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:47:04,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:04,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:04,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:47:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:47:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:47:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:47:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:47:04,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:47:04,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:47:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:47:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:47:04,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:04,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:47:04,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:47:04,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:04,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:47:04,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:47:04,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:47:04,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:47:04,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:47:04,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:04,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:04,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:04,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:47:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:04,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 00:47:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:04,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:47:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:04,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:04,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:04,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:04,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:04,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:04,893 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 00:47:04,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629603677] [2020-09-25 00:47:04,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:47:04,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:47:04,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038142913] [2020-09-25 00:47:04,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:04,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:04,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:04,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:04,897 INFO L87 Difference]: Start difference. First operand 389 states and 445 transitions. Second operand 9 states. [2020-09-25 00:47:06,450 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:06,833 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:47:07,172 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:47:07,473 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:07,778 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:08,064 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:09,268 INFO L93 Difference]: Finished difference Result 761 states and 958 transitions. [2020-09-25 00:47:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:47:09,270 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2020-09-25 00:47:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:09,276 INFO L225 Difference]: With dead ends: 761 [2020-09-25 00:47:09,276 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 00:47:09,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:47:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 00:47:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 400. [2020-09-25 00:47:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-25 00:47:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 456 transitions. [2020-09-25 00:47:09,347 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 456 transitions. Word has length 212 [2020-09-25 00:47:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:09,348 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 456 transitions. [2020-09-25 00:47:09,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 456 transitions. [2020-09-25 00:47:09,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 00:47:09,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:09,353 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-09-25 00:47:09,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:47:09,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash 561325066, now seen corresponding path program 1 times [2020-09-25 00:47:09,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:09,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087459674] [2020-09-25 00:47:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:09,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:09,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:09,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 00:47:14,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:47:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:47:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 00:47:14,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:14,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,687 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:14,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 00:47:14,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:14,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:14,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:14,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:14,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:47:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:47:14,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:47:14,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:47:14,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:47:14,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:14,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:14,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:14,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:14,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:47:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:14,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:14,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:14,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:47:14,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:14,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 00:47:14,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:47:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:14,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:47:15,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 00:47:15,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:47:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:15,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:15,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:47:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:47:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:47:15,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:15,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:47:15,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:47:15,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:47:15,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:47:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:47:15,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:47:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:47:15,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:47:15,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:47:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:15,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 00:47:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 00:47:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:15,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:47:15,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087459674] [2020-09-25 00:47:15,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:47:15,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:47:15,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463381539] [2020-09-25 00:47:15,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:15,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:15,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:15,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:15,349 INFO L87 Difference]: Start difference. First operand 400 states and 456 transitions. Second operand 9 states. [2020-09-25 00:47:17,013 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:17,305 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:17,666 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:18,023 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:47:18,322 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:47:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:47:19,678 INFO L93 Difference]: Finished difference Result 804 states and 1014 transitions. [2020-09-25 00:47:19,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:47:19,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 227 [2020-09-25 00:47:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:47:19,689 INFO L225 Difference]: With dead ends: 804 [2020-09-25 00:47:19,689 INFO L226 Difference]: Without dead ends: 514 [2020-09-25 00:47:19,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:47:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-25 00:47:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 406. [2020-09-25 00:47:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 00:47:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 462 transitions. [2020-09-25 00:47:19,768 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 462 transitions. Word has length 227 [2020-09-25 00:47:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:47:19,769 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 462 transitions. [2020-09-25 00:47:19,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:47:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 462 transitions. [2020-09-25 00:47:19,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:47:19,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:47:19,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:47:19,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:47:19,773 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:47:19,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:47:19,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1568319257, now seen corresponding path program 1 times [2020-09-25 00:47:19,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:47:19,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779168187] [2020-09-25 00:47:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:47:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:20,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:24,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:24,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 00:47:24,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:47:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 00:47:24,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:47:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 00:47:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 00:47:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,147 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:47:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:47:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:47:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 00:47:25,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:47:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:25,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:47:25,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:47:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:25,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:47:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:47:25,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:47:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:47:25,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:47:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 00:47:25,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:47:25,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:47:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 00:47:25,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 00:47:25,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:47:25,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:47:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:47:25,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:47:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:25,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:47:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:47:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:47:25,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:47:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:47:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:47:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:47:25,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:47:25,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:47:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:47:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:47:25,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:47:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:47:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:25,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 00:47:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:47:25,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 00:47:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:47:25,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:47:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:47:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:47:25,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 00:47:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:47:25,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:47:25,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:47:25,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:47:25,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:47:25,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:47:25,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:47:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:47:25,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:47:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:47:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:47:25,695 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 00:47:25,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779168187] [2020-09-25 00:47:25,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:47:25,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:47:25,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916150463] [2020-09-25 00:47:25,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:47:25,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:47:25,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:47:25,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:47:25,698 INFO L87 Difference]: Start difference. First operand 406 states and 462 transitions. Second operand 9 states. [2020-09-25 00:47:26,551 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:47:27,126 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:47:27,485 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:28,376 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:28,728 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:47:29,088 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:47:29,434 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:47:29,742 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188