/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:58:24,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:58:24,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:58:24,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:58:24,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:58:24,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:58:24,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:58:24,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:58:24,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:58:24,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:58:24,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:58:24,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:58:24,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:58:24,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:58:24,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:58:24,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:58:24,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:58:24,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:58:24,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:58:24,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:58:24,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:58:24,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:58:24,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:58:24,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:58:24,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:58:24,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:58:24,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:58:24,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:58:24,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:58:24,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:58:24,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:58:24,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:58:24,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:58:24,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:58:24,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:58:24,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:58:24,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:58:24,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:58:24,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:58:24,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:58:24,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:58:24,528 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 [2020-09-24 17:58:24,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:58:24,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:58:24,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:58:24,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:58:24,555 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:58:24,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:58:24,556 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:58:24,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:58:24,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:58:24,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:58:24,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:58:24,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:58:24,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:58:24,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:58:24,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:58:24,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:58:24,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:58:24,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:58:24,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:58:24,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:58:24,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:58:24,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:58:24,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:58:24,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:58:24,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:58:24,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:58:24,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:58:24,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:58:24,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:58:24,560 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:58:25,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:58:25,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:58:25,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:58:25,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:58:25,042 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:58:25,043 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-24 17:58:25,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b2d5aad1/429b3dd12fdf4f7d8ba9b775fdebb55a/FLAG2a440af6f [2020-09-24 17:58:25,701 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:58:25,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-24 17:58:25,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b2d5aad1/429b3dd12fdf4f7d8ba9b775fdebb55a/FLAG2a440af6f [2020-09-24 17:58:25,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b2d5aad1/429b3dd12fdf4f7d8ba9b775fdebb55a [2020-09-24 17:58:26,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:58:26,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:58:26,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:26,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:58:26,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:58:26,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:25" (1/1) ... [2020-09-24 17:58:26,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26, skipping insertion in model container [2020-09-24 17:58:26,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:25" (1/1) ... [2020-09-24 17:58:26,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:58:26,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:58:26,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:26,610 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:58:26,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:26,740 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:58:26,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26 WrapperNode [2020-09-24 17:58:26,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:26,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:58:26,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:58:26,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:58:26,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:58:26,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:58:26,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:58:26,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:58:26,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (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 [2020-09-24 17:58:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:58:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:58:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:58:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:58:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:58:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:58:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:58:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:58:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:58:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:58:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:58:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:58:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:58:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:58:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:58:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:58:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:58:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:58:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:58:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:58:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:58:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:58:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:58:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:58:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:58:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:58:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:58:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:58:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:58:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:58:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:58:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:58:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:58:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:58:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:58:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:58:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:58:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:58:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:58:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:58:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:58:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:58:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:58:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:58:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:58:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:58:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:58:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:58:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:58:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:58:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:58:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:58:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:58:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:58:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:58:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:58:28,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:58:28,156 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:58:28,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:28 BoogieIcfgContainer [2020-09-24 17:58:28,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:58:28,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:58:28,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:58:28,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:58:28,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:58:25" (1/3) ... [2020-09-24 17:58:28,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa31bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:28, skipping insertion in model container [2020-09-24 17:58:28,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26" (2/3) ... [2020-09-24 17:58:28,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa31bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:28, skipping insertion in model container [2020-09-24 17:58:28,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:28" (3/3) ... [2020-09-24 17:58:28,184 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2020-09-24 17:58:28,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:58:28,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:58:28,230 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:58:28,259 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:58:28,259 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:58:28,259 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:58:28,259 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:58:28,260 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:58:28,260 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:58:28,260 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:58:28,260 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:58:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-24 17:58:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:58:28,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:28,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:58:28,320 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:28,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:28,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2025840680, now seen corresponding path program 1 times [2020-09-24 17:58:28,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:28,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601034988] [2020-09-24 17:58:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:28,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:31,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:32,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:33,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:33,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:58:33,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:58:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 17:58:33,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 17:58:34,207 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:34,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:34,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 17:58:34,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:34,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:34,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:58:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:34,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:58:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:34,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:34,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601034988] [2020-09-24 17:58:34,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:34,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:58:34,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585304833] [2020-09-24 17:58:34,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:58:34,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:34,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:58:34,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:34,512 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 4 states. [2020-09-24 17:58:35,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:35,928 INFO L93 Difference]: Finished difference Result 493 states and 590 transitions. [2020-09-24 17:58:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:58:35,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:58:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:35,950 INFO L225 Difference]: With dead ends: 493 [2020-09-24 17:58:35,951 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 17:58:35,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 17:58:36,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 263. [2020-09-24 17:58:36,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-24 17:58:36,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2020-09-24 17:58:36,074 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 148 [2020-09-24 17:58:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:36,077 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2020-09-24 17:58:36,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:58:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2020-09-24 17:58:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:58:36,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:36,092 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] [2020-09-24 17:58:36,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:58:36,092 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:36,094 INFO L82 PathProgramCache]: Analyzing trace with hash -435050295, now seen corresponding path program 1 times [2020-09-24 17:58:36,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:36,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111713846] [2020-09-24 17:58:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:36,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:37,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:38,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:58:41,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:58:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,497 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:41,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:41,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 17:58:41,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:41,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:58:41,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:41,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:41,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:58:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:41,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:41,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:58:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:41,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:41,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:41,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111713846] [2020-09-24 17:58:41,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:41,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:58:41,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518032502] [2020-09-24 17:58:41,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:58:41,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:41,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:58:41,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:58:41,745 INFO L87 Difference]: Start difference. First operand 263 states and 288 transitions. Second operand 5 states. [2020-09-24 17:58:42,523 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:58:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:43,743 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2020-09-24 17:58:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:58:43,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:58:43,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:43,750 INFO L225 Difference]: With dead ends: 412 [2020-09-24 17:58:43,750 INFO L226 Difference]: Without dead ends: 304 [2020-09-24 17:58:43,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:58:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-24 17:58:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 253. [2020-09-24 17:58:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-24 17:58:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-24 17:58:43,804 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 149 [2020-09-24 17:58:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:43,805 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-24 17:58:43,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:58:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-24 17:58:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 17:58:43,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:43,808 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] [2020-09-24 17:58:43,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:58:43,808 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:43,809 INFO L82 PathProgramCache]: Analyzing trace with hash -917624863, now seen corresponding path program 1 times [2020-09-24 17:58:43,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:43,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770869369] [2020-09-24 17:58:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:44,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:46,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 17:58:48,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-24 17:58:48,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 17:58:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:58:48,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,197 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:49,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:49,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 17:58:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:58:49,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:49,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:58:49,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:49,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 17:58:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:49,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:58:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:58:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:58:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:49,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770869369] [2020-09-24 17:58:49,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:49,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:58:49,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889013637] [2020-09-24 17:58:49,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:58:49,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:49,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:58:49,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:58:49,437 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 6 states. [2020-09-24 17:58:49,984 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:58:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:52,248 INFO L93 Difference]: Finished difference Result 613 states and 725 transitions. [2020-09-24 17:58:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:58:52,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 17:58:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:52,255 INFO L225 Difference]: With dead ends: 613 [2020-09-24 17:58:52,255 INFO L226 Difference]: Without dead ends: 475 [2020-09-24 17:58:52,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:58:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-24 17:58:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 381. [2020-09-24 17:58:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-24 17:58:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 426 transitions. [2020-09-24 17:58:52,336 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 426 transitions. Word has length 162 [2020-09-24 17:58:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:52,337 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 426 transitions. [2020-09-24 17:58:52,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:58:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 426 transitions. [2020-09-24 17:58:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 17:58:52,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:52,340 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] [2020-09-24 17:58:52,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:58:52,341 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:52,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:52,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1871649820, now seen corresponding path program 1 times [2020-09-24 17:58:52,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:52,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664714437] [2020-09-24 17:58:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:53,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:54,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:55,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:57,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 17:58:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:58:57,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:57,779 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:57,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:57,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:57,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:57,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:57,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 17:58:57,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:57,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:57,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:57,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:57,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:57,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:57,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:57,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:57,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:57,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:57,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:57,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:57,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:57,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:57,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:57,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:57,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:57,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:57,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:58,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:58:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:58,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:58,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:58,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:58,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:58,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:58,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:58,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:58,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:58,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 17:58:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:58:58,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:58,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:58,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:58:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:58,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:58:58,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:58,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 17:58:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:58,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:58,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:58,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:58,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:58,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:58:58,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:58:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:58:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:58,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664714437] [2020-09-24 17:58:58,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:58,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:58:58,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558107441] [2020-09-24 17:58:58,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:58:58,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:58,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:58:58,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:58:58,202 INFO L87 Difference]: Start difference. First operand 381 states and 426 transitions. Second operand 10 states. [2020-09-24 17:58:58,950 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:00,567 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 17:59:01,194 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 17:59:01,539 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:01,881 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:02,182 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:02,591 INFO L93 Difference]: Finished difference Result 612 states and 730 transitions. [2020-09-24 17:59:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 17:59:02,592 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 17:59:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:02,594 INFO L225 Difference]: With dead ends: 612 [2020-09-24 17:59:02,594 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:59:02,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-09-24 17:59:02,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:59:02,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:59:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:59:02,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:59:02,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2020-09-24 17:59:02,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:02,597 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:59:02,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:59:02,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:59:02,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:59:02,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:59:02,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:59:02,781 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:02,951 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:03,297 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 6 [2020-09-24 17:59:03,461 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:03,628 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:03,787 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:03,950 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:04,114 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:04,278 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:04,437 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:04,551 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-24 17:59:04,866 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 17:59:05,169 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 17:59:05,470 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 17:59:05,770 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 17:59:05,924 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,077 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:06,221 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:06,376 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,530 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,698 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:06,851 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:07,005 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:07,153 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:07,301 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:07,457 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:07,611 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:07,761 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:07,915 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:08,070 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,223 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,377 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,525 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:08,679 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,833 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,987 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:09,255 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:09,520 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:09,784 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:10,048 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:10,314 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:10,561 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 189 [2020-09-24 17:59:10,809 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 189 [2020-09-24 17:59:10,915 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-24 17:59:11,070 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:11,223 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:11,376 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:11,526 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:11,685 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:11,845 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:11,947 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-24 17:59:12,097 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:12,250 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:12,404 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:12,560 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:12,666 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-24 17:59:12,821 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:13,076 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-24 17:59:13,230 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:13,397 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:13,553 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:13,713 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:13,999 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:14,263 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:14,529 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:14,792 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:15,055 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 191 [2020-09-24 17:59:15,307 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 189 [2020-09-24 17:59:15,567 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 189 [2020-09-24 17:59:15,728 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:15,881 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191