/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:56:27,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:56:27,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:56:27,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:56:27,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:56:27,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:56:27,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:56:27,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:56:27,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:56:27,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:56:27,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:56:27,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:56:27,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:56:27,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:56:27,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:56:27,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:56:27,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:56:27,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:56:27,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:56:27,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:56:27,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:56:27,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:56:27,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:56:27,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:56:27,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:56:27,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:56:27,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:56:27,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:56:27,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:56:27,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:56:27,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:56:27,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:56:27,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:56:27,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:56:27,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:56:27,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:56:27,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:56:27,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:56:27,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:56:27,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:56:27,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:56:27,559 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 11:56:27,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:56:27,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:56:27,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:56:27,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:56:27,588 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:56:27,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:56:27,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:56:27,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:56:27,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:56:27,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:56:27,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:56:27,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:56:27,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:56:27,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:56:27,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:56:27,590 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:56:27,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:56:27,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:56:27,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:56:27,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:56:27,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:56:27,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:56:27,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:56:27,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:56:27,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:56:27,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:56:27,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:56:27,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:56:27,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:56:27,593 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 11:56:28,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:56:28,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:56:28,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:56:28,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:56:28,124 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:56:28,125 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product19.cil.c [2020-09-25 11:56:28,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c99d12072/3f0f60c6dcc849dd821e7e29c3ee1d79/FLAG81a0ca4e3 [2020-09-25 11:56:28,822 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:56:28,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product19.cil.c [2020-09-25 11:56:28,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c99d12072/3f0f60c6dcc849dd821e7e29c3ee1d79/FLAG81a0ca4e3 [2020-09-25 11:56:29,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c99d12072/3f0f60c6dcc849dd821e7e29c3ee1d79 [2020-09-25 11:56:29,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:56:29,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:56:29,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:56:29,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:56:29,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:56:29,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e77f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29, skipping insertion in model container [2020-09-25 11:56:29,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:56:29,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:56:29,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:56:29,774 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:56:29,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:56:29,903 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:56:29,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29 WrapperNode [2020-09-25 11:56:29,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:56:29,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:56:29,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:56:29,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:56:29,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:29,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:30,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (1/1) ... [2020-09-25 11:56:30,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:56:30,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:56:30,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:56:30,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:56:30,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (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 11:56:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:56:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:56:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:56:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:56:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:56:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:56:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:56:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:56:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:56:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:56:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:56:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:56:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:56:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:56:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:56:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:56:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:56:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:56:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:56:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:56:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:56:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:56:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:56:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:56:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:56:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:56:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 11:56:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:56:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:56:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:56:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:56:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:56:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:56:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:56:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:56:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:56:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:56:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:56:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:56:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:56:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:56:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:56:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:56:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:56:31,287 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:56:31,287 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:56:31,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:56:31 BoogieIcfgContainer [2020-09-25 11:56:31,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:56:31,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:56:31,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:56:31,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:56:31,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:56:29" (1/3) ... [2020-09-25 11:56:31,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da4630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:56:31, skipping insertion in model container [2020-09-25 11:56:31,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:56:29" (2/3) ... [2020-09-25 11:56:31,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da4630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:56:31, skipping insertion in model container [2020-09-25 11:56:31,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:56:31" (3/3) ... [2020-09-25 11:56:31,304 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2020-09-25 11:56:31,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:56:31,327 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:56:31,350 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:56:31,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:56:31,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:56:31,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:56:31,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:56:31,385 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:56:31,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:56:31,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:56:31,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:56:31,417 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 11:56:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:56:31,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:56:31,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:56:31,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:56:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:56:31,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2014184638, now seen corresponding path program 1 times [2020-09-25 11:56:31,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:56:31,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985947767] [2020-09-25 11:56:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:56:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:32,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:32,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:33,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:34,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:36,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:36,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:56:36,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:56:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 11:56:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:36,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:56:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:56:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 11:56:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 11:56:37,513 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:56:37,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:56:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:37,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:37,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:56:37,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:37,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 11:56:37,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:37,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:56:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:37,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:56:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:37,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:37,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:37,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:37,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:56:37,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:37,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:37,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:37,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:37,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:56:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:37,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:37,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:37,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:37,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:37,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:56:37,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:37,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:37,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:56:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:37,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:38,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:38,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:38,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:56:38,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:38,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:56:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:38,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:38,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:38,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:38,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:56:38,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:38,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:38,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:38,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:56:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:38,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:38,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:56:38,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:56:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:56:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:56:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:38,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:56:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:38,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:38,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:38,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:38,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:38,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:38,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:38,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:38,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:56:38,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:56:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:56:38,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:38,076 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 11:56:38,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985947767] [2020-09-25 11:56:38,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:56:38,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 11:56:38,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879805001] [2020-09-25 11:56:38,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:56:38,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:56:38,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:56:38,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:56:38,123 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 5 states. [2020-09-25 11:56:38,845 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:56:39,591 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:56:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:56:41,630 INFO L93 Difference]: Finished difference Result 690 states and 866 transitions. [2020-09-25 11:56:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:56:41,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 11:56:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:56:41,656 INFO L225 Difference]: With dead ends: 690 [2020-09-25 11:56:41,657 INFO L226 Difference]: Without dead ends: 506 [2020-09-25 11:56:41,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:56:41,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-25 11:56:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 424. [2020-09-25 11:56:41,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 11:56:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 481 transitions. [2020-09-25 11:56:41,814 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 481 transitions. Word has length 142 [2020-09-25 11:56:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:56:41,815 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 481 transitions. [2020-09-25 11:56:41,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:56:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 481 transitions. [2020-09-25 11:56:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 11:56:41,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:56:41,820 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] [2020-09-25 11:56:41,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:56:41,821 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:56:41,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:56:41,821 INFO L82 PathProgramCache]: Analyzing trace with hash 596285910, now seen corresponding path program 1 times [2020-09-25 11:56:41,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:56:41,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333112832] [2020-09-25 11:56:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:56:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:41,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:42,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:42,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:43,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:45,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:46,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:46,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 11:56:46,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:56:46,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 11:56:46,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:46,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:56:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:56:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 11:56:46,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,297 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:56:47,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:56:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:56:47,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 11:56:47,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:56:47,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:56:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:47,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:47,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:47,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:47,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:56:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:47,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:47,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:56:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:47,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:47,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:47,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:56:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:47,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 11:56:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:56:47,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:47,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 11:56:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:56:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:47,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:56:47,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:56:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:56:47,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 11:56:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:47,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:56:47,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:56:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:47,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:56:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:47,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:47,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:47,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:47,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:47,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:56:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:56:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:56:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:56:47,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:47,733 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 11:56:47,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333112832] [2020-09-25 11:56:47,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:56:47,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:56:47,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785036631] [2020-09-25 11:56:47,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:56:47,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:56:47,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:56:47,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:56:47,738 INFO L87 Difference]: Start difference. First operand 424 states and 481 transitions. Second operand 9 states. [2020-09-25 11:56:48,189 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:56:49,280 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:56:49,642 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:56:50,023 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:56:50,466 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:56:50,822 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:56:51,381 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:56:51,692 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:56:52,083 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:56:53,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:56:53,310 INFO L93 Difference]: Finished difference Result 1318 states and 1721 transitions. [2020-09-25 11:56:53,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:56:53,310 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 11:56:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:56:53,321 INFO L225 Difference]: With dead ends: 1318 [2020-09-25 11:56:53,321 INFO L226 Difference]: Without dead ends: 940 [2020-09-25 11:56:53,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:56:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-09-25 11:56:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 669. [2020-09-25 11:56:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 11:56:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 767 transitions. [2020-09-25 11:56:53,465 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 767 transitions. Word has length 151 [2020-09-25 11:56:53,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:56:53,466 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 767 transitions. [2020-09-25 11:56:53,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:56:53,466 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 767 transitions. [2020-09-25 11:56:53,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 11:56:53,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:56:53,470 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] [2020-09-25 11:56:53,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:56:53,471 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:56:53,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:56:53,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2032686128, now seen corresponding path program 1 times [2020-09-25 11:56:53,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:56:53,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952629142] [2020-09-25 11:56:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:56:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:53,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:54,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:56,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:56,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 11:56:56,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:56:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3015 [2020-09-25 11:56:56,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:56,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:56:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 11:56:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 11:56:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:56,878 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:56:56,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:56:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:56,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:56:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 11:56:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 11:56:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:56:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:57,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:57,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:56:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:57,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:57,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:57,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:57,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:56:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:56:57,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:56:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:57,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:56:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:56:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:56:57,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:56:57,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:56:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 11:56:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:56:57,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:56:57,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:56:57,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:56:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:56:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:56:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:57,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:56:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:56:57,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:56:57,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:56:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 11:56:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:57,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:56:57,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:56:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:57,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:56:57,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 11:56:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:56:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:56:57,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:56:57,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:56:57,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:56:57,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:56:57,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:56:57,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:56:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:56:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:56:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:56:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:56:57,367 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 11:56:57,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952629142] [2020-09-25 11:56:57,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:56:57,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:56:57,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607453344] [2020-09-25 11:56:57,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:56:57,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:56:57,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:56:57,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:56:57,373 INFO L87 Difference]: Start difference. First operand 669 states and 767 transitions. Second operand 10 states. [2020-09-25 11:56:57,915 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:56:59,189 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:56:59,671 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 11:57:00,002 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:00,346 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:57:00,665 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:57:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:57:00,955 INFO L93 Difference]: Finished difference Result 1173 states and 1420 transitions. [2020-09-25 11:57:00,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 11:57:00,956 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 11:57:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:57:00,957 INFO L225 Difference]: With dead ends: 1173 [2020-09-25 11:57:00,957 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:57:00,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:57:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:57:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:57:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:57:00,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:57:00,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 11:57:00,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:57:00,962 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:57:00,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:57:00,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:57:00,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:57:00,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:57:00,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:57:01,155 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:01,322 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:01,483 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:01,663 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:01,944 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 11:57:02,107 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:02,377 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 11:57:02,493 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 11:57:02,598 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 12 [2020-09-25 11:57:03,166 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:03,511 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:03,907 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 11:57:04,171 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:04,558 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 11:57:05,037 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 11:57:05,283 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 11:57:05,539 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:05,791 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:06,054 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:06,495 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 11:57:06,742 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 11:57:06,994 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:07,321 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 187 [2020-09-25 11:57:07,741 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 187 [2020-09-25 11:57:07,981 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:08,135 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:08,293 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:08,441 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:08,594 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:08,832 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 9 [2020-09-25 11:57:08,984 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:09,147 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:09,575 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 11:57:09,980 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 11:57:10,687 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:10,826 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:57:10,969 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:11,117 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:11,261 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:11,409 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:11,557 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:11,708 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:11,872 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:12,020 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:12,169 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:12,318 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:12,472 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:12,619 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:12,767 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:12,915 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:13,058 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:13,210 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:13,358 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:13,510 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:13,654 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:13,802 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:13,955 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:14,098 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:14,247 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:14,395 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:14,538 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:14,686 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:14,835 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:14,983 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:15,130 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:15,274 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:15,422 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:15,566 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:15,709 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:15,858 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:16,006 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:16,153 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:16,301 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:16,454 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:16,603 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:16,747 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:16,896 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:17,044 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:17,198 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:17,351 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:17,499 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:17,647 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:17,799 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:17,951 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:18,104 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:18,251 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:18,399 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:18,551 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:18,977 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 186 [2020-09-25 11:57:19,363 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 11:57:20,087 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 11:57:20,271 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:20,424 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:20,572 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:20,724 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:20,877 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:21,029 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:21,177 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:21,325 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:21,493 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:57:21,642 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:57:21,790 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:21,933 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:22,082 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,229 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,379 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,527 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,682 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:22,830 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:22,978 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:23,129 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:57:23,277 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:57:23,530 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 6 [2020-09-25 11:57:23,852 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188