/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_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:44:17,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:44:17,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:44:17,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:44:17,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:44:17,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:44:17,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:44:17,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:44:17,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:44:17,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:44:17,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:44:17,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:44:17,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:44:17,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:44:17,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:44:17,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:44:17,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:44:17,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:44:17,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:44:17,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:44:17,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:44:17,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:44:17,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:44:17,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:44:17,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:44:17,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:44:17,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:44:17,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:44:17,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:44:17,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:44:17,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:44:17,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:44:17,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:44:17,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:44:17,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:44:17,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:44:17,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:44:17,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:44:17,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:44:17,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:44:17,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:44:17,612 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 00:44:17,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:44:17,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:44:17,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:44:17,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:44:17,640 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:44:17,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:44:17,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:44:17,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:44:17,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:44:17,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:44:17,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:44:17,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:44:17,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:44:17,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:44:17,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:44:17,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:44:17,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:44:17,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:44:17,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:44:17,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:44:17,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:44:17,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:44:17,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:44:17,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:44:17,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:44:17,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:44:17,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:44:17,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:44:17,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:44:17,647 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 00:44:18,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:44:18,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:44:18,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:44:18,177 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:44:18,177 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:44:18,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 00:44:18,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d59b72e/d43c4312b9144e858e0e68dcf727da0e/FLAGd46bc227e [2020-09-25 00:44:18,894 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:44:18,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 00:44:18,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d59b72e/d43c4312b9144e858e0e68dcf727da0e/FLAGd46bc227e [2020-09-25 00:44:19,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b1d59b72e/d43c4312b9144e858e0e68dcf727da0e [2020-09-25 00:44:19,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:44:19,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:44:19,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:19,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:44:19,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:44:19,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d1a539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19, skipping insertion in model container [2020-09-25 00:44:19,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:44:19,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:44:19,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:19,772 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:44:19,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:44:19,901 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:44:19,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19 WrapperNode [2020-09-25 00:44:19,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:44:19,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:44:19,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:44:19,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:44:19,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (1/1) ... [2020-09-25 00:44:19,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:44:20,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:44:20,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:44:20,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:44:20,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (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 00:44:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:44:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:44:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:44:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:44:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:44:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:44:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:44:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:44:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:44:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:44:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:44:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:44:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:44:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:44:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:44:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:44:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:44:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:44:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:44:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:44:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:44:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:44:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:44:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:44:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:44:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:44:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:44:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:44:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:44:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:44:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:44:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:44:21,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:44:21,395 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:44:21,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:21 BoogieIcfgContainer [2020-09-25 00:44:21,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:44:21,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:44:21,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:44:21,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:44:21,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:44:19" (1/3) ... [2020-09-25 00:44:21,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddf8a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:21, skipping insertion in model container [2020-09-25 00:44:21,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:44:19" (2/3) ... [2020-09-25 00:44:21,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddf8a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:44:21, skipping insertion in model container [2020-09-25 00:44:21,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:44:21" (3/3) ... [2020-09-25 00:44:21,413 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-25 00:44:21,427 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:44:21,439 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:44:21,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:44:21,503 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:44:21,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:44:21,504 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:44:21,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:44:21,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:44:21,504 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:44:21,504 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:44:21,505 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:44:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-25 00:44:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:44:21,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:21,555 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] [2020-09-25 00:44:21,555 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:21,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-25 00:44:21,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:21,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494149210] [2020-09-25 00:44:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:22,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:22,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:23,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:44:27,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:27,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 00:44:27,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:44:27,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:44:27,678 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:27,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:27,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 00:44:27,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:27,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:27,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:27,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:27,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:27,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:27,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:27,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:27,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:44:27,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:27,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:27,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:27,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:27,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:44:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:27,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:27,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:27,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:27,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:27,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:27,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:27,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:27,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:27,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:27,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:44:28,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:44:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:28,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:28,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:28,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:28,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:28,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:44:28,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:28,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:28,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:28,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:28,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:28,084 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 00:44:28,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494149210] [2020-09-25 00:44:28,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:28,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:44:28,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012307689] [2020-09-25 00:44:28,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:44:28,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:28,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:44:28,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:28,137 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-09-25 00:44:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:30,570 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-09-25 00:44:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:44:30,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:44:30,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:30,608 INFO L225 Difference]: With dead ends: 596 [2020-09-25 00:44:30,608 INFO L226 Difference]: Without dead ends: 359 [2020-09-25 00:44:30,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:44:30,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-09-25 00:44:30,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-09-25 00:44:30,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-25 00:44:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-09-25 00:44:30,771 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-09-25 00:44:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:30,772 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-09-25 00:44:30,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:44:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-09-25 00:44:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:44:30,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:30,778 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] [2020-09-25 00:44:30,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:44:30,778 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:30,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-09-25 00:44:30,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:30,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301839844] [2020-09-25 00:44:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:30,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:30,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:32,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:35,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:35,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:44:35,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:44:35,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 00:44:35,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:44:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:35,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,152 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:36,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:36,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 00:44:36,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:36,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:36,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:36,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:36,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:36,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:44:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:36,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:36,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:44:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:36,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:36,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:44:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:36,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:36,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:36,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:36,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:36,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:36,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:36,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:36,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:36,391 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 00:44:36,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301839844] [2020-09-25 00:44:36,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:36,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:44:36,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782721225] [2020-09-25 00:44:36,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:44:36,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:36,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:44:36,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:44:36,399 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-09-25 00:44:37,015 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:44:38,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:38,506 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-09-25 00:44:38,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:44:38,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:44:38,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:38,511 INFO L225 Difference]: With dead ends: 503 [2020-09-25 00:44:38,511 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 00:44:38,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:38,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 00:44:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-09-25 00:44:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 00:44:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-25 00:44:38,578 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-09-25 00:44:38,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:38,581 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-25 00:44:38,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:44:38,581 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-25 00:44:38,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:44:38,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:38,593 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] [2020-09-25 00:44:38,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:44:38,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:38,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:38,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-09-25 00:44:38,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:38,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231840849] [2020-09-25 00:44:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:38,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:41,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:41,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:44:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2951 [2020-09-25 00:44:41,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:44:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:41,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:41,892 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:41,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:41,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:41,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:41,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:41,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:41,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 00:44:41,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:41,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:41,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:41,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:42,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:42,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:42,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:42,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:42,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:42,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:42,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:42,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:42,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:42,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:42,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:42,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:44:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:44:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:44:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:42,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:42,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:42,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:44:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:42,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:42,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:42,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:42,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:42,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:42,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:42,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:42,126 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 00:44:42,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231840849] [2020-09-25 00:44:42,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:42,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:44:42,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870987260] [2020-09-25 00:44:42,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:44:42,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:42,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:44:42,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:44:42,128 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 5 states. [2020-09-25 00:44:42,593 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:45,192 INFO L93 Difference]: Finished difference Result 761 states and 887 transitions. [2020-09-25 00:44:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:44:45,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:44:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:45,201 INFO L225 Difference]: With dead ends: 761 [2020-09-25 00:44:45,201 INFO L226 Difference]: Without dead ends: 570 [2020-09-25 00:44:45,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:44:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-09-25 00:44:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 482. [2020-09-25 00:44:45,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-25 00:44:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 541 transitions. [2020-09-25 00:44:45,311 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 541 transitions. Word has length 167 [2020-09-25 00:44:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:45,311 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 541 transitions. [2020-09-25 00:44:45,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:44:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 541 transitions. [2020-09-25 00:44:45,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 00:44:45,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:45,315 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] [2020-09-25 00:44:45,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:44:45,316 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:45,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-09-25 00:44:45,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:45,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119177459] [2020-09-25 00:44:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:45,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 00:44:47,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1704 [2020-09-25 00:44:47,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:44:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:44:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 00:44:47,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,439 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:47,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:47,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:44:47,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:47,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:47,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:44:47,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:47,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:47,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 00:44:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:47,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:47,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:44:47,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 00:44:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:47,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:47,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:47,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:47,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 00:44:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:47,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:44:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 00:44:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:47,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:47,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:47,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:47,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:47,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:47,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:47,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:47,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:47,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:47,948 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 00:44:47,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119177459] [2020-09-25 00:44:47,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:47,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:44:47,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242200913] [2020-09-25 00:44:47,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:44:47,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:47,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:44:47,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:44:47,951 INFO L87 Difference]: Start difference. First operand 482 states and 541 transitions. Second operand 9 states. [2020-09-25 00:44:48,539 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:51,073 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:51,757 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 00:44:52,189 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:52,556 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:52,883 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:53,217 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:44:53,552 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:54,984 INFO L93 Difference]: Finished difference Result 1328 states and 1597 transitions. [2020-09-25 00:44:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:44:54,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 00:44:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:54,999 INFO L225 Difference]: With dead ends: 1328 [2020-09-25 00:44:55,000 INFO L226 Difference]: Without dead ends: 956 [2020-09-25 00:44:55,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:44:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-09-25 00:44:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 849. [2020-09-25 00:44:55,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2020-09-25 00:44:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 975 transitions. [2020-09-25 00:44:55,157 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 975 transitions. Word has length 172 [2020-09-25 00:44:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:55,157 INFO L479 AbstractCegarLoop]: Abstraction has 849 states and 975 transitions. [2020-09-25 00:44:55,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:44:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 975 transitions. [2020-09-25 00:44:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 00:44:55,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:55,163 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] [2020-09-25 00:44:55,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:44:55,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:55,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:55,164 INFO L82 PathProgramCache]: Analyzing trace with hash 468409622, now seen corresponding path program 1 times [2020-09-25 00:44:55,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:55,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314142346] [2020-09-25 00:44:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:57,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 00:45:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:45:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,519 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:45:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:45:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:45:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:45:00,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:45:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:00,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:45:00,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:45:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:00,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:45:00,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:45:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:00,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:45:00,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:45:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:00,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:45:00,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 00:45:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:45:00,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:45:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:45:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:45:00,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:45:00,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:45:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:45:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:45:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:00,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:45:00,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:45:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:45:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:00,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:45:00,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:45:00,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 00:45:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:00,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:00,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:00,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:00,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:00,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:45:00,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:45:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:00,883 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 00:45:00,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314142346] [2020-09-25 00:45:00,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:45:00,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:45:00,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601466807] [2020-09-25 00:45:00,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:45:00,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:45:00,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:45:00,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:45:00,886 INFO L87 Difference]: Start difference. First operand 849 states and 975 transitions. Second operand 10 states. [2020-09-25 00:45:02,108 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 00:45:02,420 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:45:03,499 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 00:45:05,155 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:45:05,508 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:45:06,037 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190