/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:43:28,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:43:28,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:43:28,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:43:28,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:43:28,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:43:28,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:43:28,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:43:28,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:43:28,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:43:28,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:43:28,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:43:28,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:43:28,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:43:28,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:43:28,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:43:28,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:43:28,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:43:28,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:43:28,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:43:28,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:43:28,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:43:28,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:43:28,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:43:28,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:43:28,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:43:28,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:43:28,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:43:28,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:43:28,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:43:28,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:43:28,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:43:28,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:43:28,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:43:28,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:43:28,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:43:28,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:43:28,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:43:28,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:43:28,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:43:28,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:43:28,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:43:28,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:43:28,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:43:28,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:43:28,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:43:28,577 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:43:28,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:43:28,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:43:28,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:43:28,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:43:28,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:43:28,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:43:28,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:43:28,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:43:28,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:43:28,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:43:28,581 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:43:28,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:43:28,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:43:28,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:43:28,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:43:28,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:43:28,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:28,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:43:28,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:43:28,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:43:28,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:43:28,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:43:28,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:43:28,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:43:28,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:43:29,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:43:29,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:43:29,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:43:29,093 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:43:29,094 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:43:29,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 00:43:29,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4b31ce1/3426816f3ede4d3ab3a138f69b7a16fe/FLAGddbfd2673 [2020-09-25 00:43:29,792 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:43:29,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 00:43:29,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4b31ce1/3426816f3ede4d3ab3a138f69b7a16fe/FLAGddbfd2673 [2020-09-25 00:43:30,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4b31ce1/3426816f3ede4d3ab3a138f69b7a16fe [2020-09-25 00:43:30,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:43:30,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:43:30,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:43:30,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:43:30,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:43:30,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222ea03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30, skipping insertion in model container [2020-09-25 00:43:30,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:43:30,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:43:30,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:43:30,670 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:43:30,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:43:30,807 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:43:30,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30 WrapperNode [2020-09-25 00:43:30,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:43:30,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:43:30,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:43:30,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:43:30,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... [2020-09-25 00:43:30,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:43:30,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:43:30,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:43:30,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:43:30,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:43:31,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:43:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:43:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:43:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:43:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:43:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:43:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:43:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:43:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:43:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:43:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:43:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:43:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:43:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:43:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:43:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:43:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:43:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:43:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:43:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:43:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:43:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:43:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:43:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:43:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:43:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:43:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:43:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:43:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:43:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:43:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:43:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:43:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:43:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:43:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:43:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:43:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:43:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:43:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:43:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:43:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:43:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:43:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:43:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:43:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:43:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:43:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:43:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:43:32,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:43:32,177 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:43:32,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:43:32 BoogieIcfgContainer [2020-09-25 00:43:32,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:43:32,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:43:32,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:43:32,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:43:32,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:43:30" (1/3) ... [2020-09-25 00:43:32,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616ece0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:43:32, skipping insertion in model container [2020-09-25 00:43:32,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:43:30" (2/3) ... [2020-09-25 00:43:32,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616ece0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:43:32, skipping insertion in model container [2020-09-25 00:43:32,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:43:32" (3/3) ... [2020-09-25 00:43:32,195 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2020-09-25 00:43:32,206 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:43:32,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:43:32,240 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:43:32,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:43:32,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:43:32,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:43:32,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:43:32,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:43:32,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:43:32,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:43:32,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:43:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 00:43:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:43:32,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:32,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:32,372 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 876604812, now seen corresponding path program 1 times [2020-09-25 00:43:32,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:32,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838028491] [2020-09-25 00:43:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:33,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:34,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:37,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:37,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:43:37,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:37,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 00:43:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:37,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:37,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:43:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:37,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:43:38,338 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:38,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 00:43:38,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:38,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:38,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:38,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:38,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:43:38,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:38,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:38,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:43:38,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:38,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:38,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:38,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:43:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:38,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:38,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:38,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:43:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:38,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:38,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:38,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:38,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:38,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:38,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838028491] [2020-09-25 00:43:38,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:38,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:43:38,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165240883] [2020-09-25 00:43:38,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:43:38,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:38,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:43:38,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:43:38,755 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 00:43:40,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:40,246 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2020-09-25 00:43:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:43:40,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:43:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:40,268 INFO L225 Difference]: With dead ends: 486 [2020-09-25 00:43:40,268 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 00:43:40,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:43:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 00:43:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 00:43:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 00:43:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-25 00:43:40,376 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 153 [2020-09-25 00:43:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:40,377 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-25 00:43:40,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:43:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-25 00:43:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:43:40,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:40,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:40,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:43:40,383 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:40,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:40,384 INFO L82 PathProgramCache]: Analyzing trace with hash -880334198, now seen corresponding path program 1 times [2020-09-25 00:43:40,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:40,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [686229458] [2020-09-25 00:43:40,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:40,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:40,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:42,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:45,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:45,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:43:45,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:43:45,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-25 00:43:45,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:43:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:43:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:45,835 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:45,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:45,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:45,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:45,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:45,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:43:45,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:45,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:45,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:45,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:45,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:45,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:45,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:45,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:45,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:45,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:45,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:45,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:45,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:45,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:45,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:46,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:46,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:46,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:46,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:46,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:46,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:46,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:46,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:46,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:46,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:46,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:46,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:43:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:46,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:46,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:46,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:46,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:46,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:46,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:46,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:43:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:46,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:46,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:46,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:46,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:46,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:43:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:46,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:46,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:46,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [686229458] [2020-09-25 00:43:46,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:46,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:43:46,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306746521] [2020-09-25 00:43:46,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:43:46,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:46,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:43:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:43:46,075 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-25 00:43:46,744 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:43:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:47,772 INFO L93 Difference]: Finished difference Result 399 states and 446 transitions. [2020-09-25 00:43:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:43:47,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:43:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:47,781 INFO L225 Difference]: With dead ends: 399 [2020-09-25 00:43:47,781 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 00:43:47,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 00:43:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 00:43:47,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 00:43:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 00:43:47,868 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 154 [2020-09-25 00:43:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:47,872 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 00:43:47,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:43:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 00:43:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:43:47,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:47,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:47,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:43:47,878 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:47,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2069807768, now seen corresponding path program 1 times [2020-09-25 00:43:47,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:47,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962041736] [2020-09-25 00:43:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:47,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:48,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:43:51,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:43:51,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3238 [2020-09-25 00:43:51,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:43:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:43:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:51,525 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:51,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:51,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 00:43:51,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:51,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:51,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:51,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:51,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:51,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:51,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:51,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:51,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:43:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:43:51,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:43:51,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:43:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:43:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:43:51,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:43:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:51,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:51,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:43:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:51,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:51,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962041736] [2020-09-25 00:43:51,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:51,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:43:51,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859989693] [2020-09-25 00:43:51,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:43:51,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:51,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:43:51,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:51,811 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 00:43:52,401 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:53,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:53,305 INFO L93 Difference]: Finished difference Result 445 states and 508 transitions. [2020-09-25 00:43:53,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:43:53,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:43:53,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:53,309 INFO L225 Difference]: With dead ends: 445 [2020-09-25 00:43:53,309 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 00:43:53,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:43:53,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 00:43:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 00:43:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 00:43:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-25 00:43:53,353 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 167 [2020-09-25 00:43:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:53,354 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-25 00:43:53,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:43:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-25 00:43:53,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 00:43:53,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:53,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:53,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:43:53,357 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:53,358 INFO L82 PathProgramCache]: Analyzing trace with hash 398712319, now seen corresponding path program 1 times [2020-09-25 00:43:53,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:53,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790384033] [2020-09-25 00:43:53,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:53,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:54,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:55,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 00:43:58,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:43:58,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 00:43:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 00:43:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,814 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:58,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:58,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:58,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:58,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:58,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:58,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:58,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:58,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:58,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:58,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:58,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:58,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:58,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:58,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:59,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:59,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:59,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:43:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:43:59,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:59,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 00:43:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:43:59,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:43:59,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:43:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 00:43:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:59,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:59,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 00:43:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:59,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:59,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:59,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 00:43:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:59,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:59,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:59,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:59,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:59,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:43:59,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:43:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:59,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:59,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790384033] [2020-09-25 00:43:59,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:59,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:43:59,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672506269] [2020-09-25 00:43:59,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:43:59,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:59,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:43:59,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:43:59,245 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 10 states. [2020-09-25 00:44:00,507 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:01,736 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:44:02,086 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:44:02,528 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 00:44:02,936 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 00:44:03,332 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 00:44:04,318 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:04,623 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:04,982 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:44:05,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:05,521 INFO L93 Difference]: Finished difference Result 623 states and 749 transitions. [2020-09-25 00:44:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:44:05,522 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-25 00:44:05,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:05,525 INFO L225 Difference]: With dead ends: 623 [2020-09-25 00:44:05,525 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 00:44:05,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:44:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 00:44:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 239. [2020-09-25 00:44:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 00:44:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 251 transitions. [2020-09-25 00:44:05,556 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 251 transitions. Word has length 175 [2020-09-25 00:44:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:05,556 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 251 transitions. [2020-09-25 00:44:05,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:44:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 251 transitions. [2020-09-25 00:44:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 00:44:05,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:05,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:05,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:44:05,560 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:05,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1043835343, now seen corresponding path program 1 times [2020-09-25 00:44:05,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:05,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569125994] [2020-09-25 00:44:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:05,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 00:44:08,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:44:08,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2397 [2020-09-25 00:44:08,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:44:08,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:44:08,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 00:44:08,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,334 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:08,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:44:08,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:08,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:08,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:08,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:08,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:08,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:44:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:44:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:08,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:44:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 00:44:08,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 00:44:08,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:08,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:44:08,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:44:08,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:44:08,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:44:08,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:44:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:44:08,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:44:08,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:44:08,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:44:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:08,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:44:08,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:08,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:44:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 00:44:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:08,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:44:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 00:44:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:08,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:44:08,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 00:44:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:08,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:08,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:08,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:08,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:08,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:08,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:08,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:08,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:08,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569125994] [2020-09-25 00:44:08,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:08,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 00:44:08,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985831918] [2020-09-25 00:44:08,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:44:08,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:08,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:44:08,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:44:08,771 INFO L87 Difference]: Start difference. First operand 239 states and 251 transitions. Second operand 11 states. [2020-09-25 00:44:09,315 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:11,381 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:11,736 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:12,061 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:12,383 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:44:12,692 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:44:13,083 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:44:13,389 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:13,722 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:44:14,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:44:14,134 INFO L93 Difference]: Finished difference Result 549 states and 628 transitions. [2020-09-25 00:44:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 00:44:14,135 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 00:44:14,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:44:14,139 INFO L225 Difference]: With dead ends: 549 [2020-09-25 00:44:14,139 INFO L226 Difference]: Without dead ends: 420 [2020-09-25 00:44:14,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:44:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-25 00:44:14,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 350. [2020-09-25 00:44:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 00:44:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 376 transitions. [2020-09-25 00:44:14,188 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 376 transitions. Word has length 199 [2020-09-25 00:44:14,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:44:14,188 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 376 transitions. [2020-09-25 00:44:14,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:44:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 376 transitions. [2020-09-25 00:44:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 00:44:14,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:44:14,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:44:14,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:44:14,193 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:44:14,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:44:14,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1519010768, now seen corresponding path program 1 times [2020-09-25 00:44:14,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:44:14,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100563996] [2020-09-25 00:44:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:44:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:14,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:14,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 00:44:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-09-25 00:44:14,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 00:44:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:15,249 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:44:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:44:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:44:15,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 00:44:15,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:15,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:44:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:15,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:15,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:44:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:15,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:44:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:15,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:44:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:15,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:44:15,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:44:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:44:15,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:44:15,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:44:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:44:15,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:15,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:44:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 00:44:15,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 00:44:15,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:44:15,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:44:15,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:44:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:44:15,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:44:15,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:44:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:44:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:44:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:44:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:44:15,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:44:15,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:44:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:44:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:44:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:44:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:44:15,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:15,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 00:44:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 00:44:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:15,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:15,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:15,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 00:44:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:44:15,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 00:44:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:44:15,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:44:15,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:44:15,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:44:15,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:44:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:44:15,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:44:15,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:44:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:44:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:44:15,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:44:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:44:15,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100563996] [2020-09-25 00:44:15,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:44:15,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:44:15,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151385478] [2020-09-25 00:44:15,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:44:15,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:44:15,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:44:15,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:44:15,802 INFO L87 Difference]: Start difference. First operand 350 states and 376 transitions. Second operand 10 states.