/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_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:54:09,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:54:09,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:54:09,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:54:09,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:54:09,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:54:09,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:54:09,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:54:09,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:54:09,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:54:09,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:54:09,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:54:09,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:54:09,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:54:09,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:54:09,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:54:09,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:54:09,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:54:09,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:54:09,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:54:09,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:54:09,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:54:09,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:54:09,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:54:09,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:54:09,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:54:09,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:54:09,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:54:09,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:54:09,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:54:09,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:54:09,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:54:09,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:54:09,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:54:09,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:54:09,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:54:09,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:54:09,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:54:09,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:54:09,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:54:09,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:54:09,524 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 17:54:09,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:54:09,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:54:09,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:54:09,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:54:09,568 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:54:09,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:54:09,569 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:54:09,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:54:09,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:54:09,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:54:09,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:54:09,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:54:09,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:54:09,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:54:09,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:54:09,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:54:09,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:54:09,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:54:09,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:54:09,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:54:09,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:54:09,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:54:09,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:54:09,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:54:09,576 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 17:54:10,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:54:10,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:54:10,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:54:10,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:54:10,077 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:54:10,078 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2020-09-24 17:54:10,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d28f0326/b93c5faf876a424594194b8ca044560e/FLAG916721e54 [2020-09-24 17:54:10,803 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:54:10,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product20.cil.c [2020-09-24 17:54:10,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d28f0326/b93c5faf876a424594194b8ca044560e/FLAG916721e54 [2020-09-24 17:54:11,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d28f0326/b93c5faf876a424594194b8ca044560e [2020-09-24 17:54:11,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:54:11,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:54:11,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:54:11,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:54:11,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:54:11,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11, skipping insertion in model container [2020-09-24 17:54:11,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:54:11,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:54:11,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:54:11,661 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:54:11,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:54:11,780 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:54:11,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11 WrapperNode [2020-09-24 17:54:11,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:54:11,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:54:11,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:54:11,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:54:11,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (1/1) ... [2020-09-24 17:54:11,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:54:11,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:54:11,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:54:11,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:54:11,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (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 17:54:11,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:54:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:54:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:54:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:54:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:54:11,973 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:54:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:54:11,974 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:54:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:54:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:54:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:54:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:54:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:54:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:54:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:54:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:54:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:54:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:54:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:54:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:54:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:54:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:54:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:54:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:54:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:54:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:54:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:54:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:54:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:54:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:54:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:54:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:54:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:54:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:54:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:54:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:54:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:54:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:54:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:54:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:54:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:54:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:54:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:54:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:54:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:54:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:54:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:54:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:54:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:54:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:54:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:54:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:54:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:54:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:54:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:54:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:54:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:54:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:54:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:54:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:54:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:54:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:54:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:54:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:54:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:54:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:54:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:54:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:54:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:54:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:54:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:54:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:54:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:54:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:54:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:54:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:54:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:54:13,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:54:13,135 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:54:13,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:54:13 BoogieIcfgContainer [2020-09-24 17:54:13,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:54:13,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:54:13,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:54:13,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:54:13,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:54:11" (1/3) ... [2020-09-24 17:54:13,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc00dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:54:13, skipping insertion in model container [2020-09-24 17:54:13,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:11" (2/3) ... [2020-09-24 17:54:13,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc00dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:54:13, skipping insertion in model container [2020-09-24 17:54:13,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:54:13" (3/3) ... [2020-09-24 17:54:13,152 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2020-09-24 17:54:13,164 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:54:13,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:54:13,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:54:13,235 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:54:13,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:54:13,236 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:54:13,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:54:13,236 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:54:13,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:54:13,236 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:54:13,237 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:54:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-24 17:54:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:54:13,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:54:13,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:54:13,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:54:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:54:13,296 INFO L82 PathProgramCache]: Analyzing trace with hash 253748862, now seen corresponding path program 1 times [2020-09-24 17:54:13,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:54:13,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904607762] [2020-09-24 17:54:13,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:54:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:13,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:16,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:18,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:18,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:18,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:54:18,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:54:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 17:54:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:54:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:54:19,207 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:19,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:54:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:54:19,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 17:54:19,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:19,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:54:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:19,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:19,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:19,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:54:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:19,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:19,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:54:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:19,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:54:19,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:54:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:19,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:54:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:19,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:19,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:54:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:19,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:19,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:19,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:19,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:54:19,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:19,463 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 17:54:19,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904607762] [2020-09-24 17:54:19,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:54:19,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:54:19,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047025021] [2020-09-24 17:54:19,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:54:19,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:54:19,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:54:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:54:19,495 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-24 17:54:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:54:20,760 INFO L93 Difference]: Finished difference Result 436 states and 522 transitions. [2020-09-24 17:54:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:54:20,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:54:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:54:20,785 INFO L225 Difference]: With dead ends: 436 [2020-09-24 17:54:20,785 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 17:54:20,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:54:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 17:54:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-24 17:54:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 17:54:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 253 transitions. [2020-09-24 17:54:20,983 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 253 transitions. Word has length 142 [2020-09-24 17:54:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:54:20,984 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 253 transitions. [2020-09-24 17:54:20,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:54:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 253 transitions. [2020-09-24 17:54:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:54:20,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:54:20,989 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] [2020-09-24 17:54:20,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:54:20,990 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:54:20,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:54:20,990 INFO L82 PathProgramCache]: Analyzing trace with hash 548958349, now seen corresponding path program 1 times [2020-09-24 17:54:20,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:54:20,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17532781] [2020-09-24 17:54:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:54:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:21,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:22,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:23,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:54:26,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:54:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 17:54:26,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:54:26,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:54:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:54:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:54:26,539 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:26,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:54:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:54:26,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 17:54:26,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:26,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:54:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:26,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:54:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:26,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:54:26,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:54:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:26,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:54:26,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:54:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:26,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:54:26,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:54:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:26,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:26,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:26,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:54:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:26,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:26,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:26,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:26,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:26,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:26,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:26,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:26,748 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 17:54:26,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17532781] [2020-09-24 17:54:26,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:54:26,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:54:26,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118821496] [2020-09-24 17:54:26,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:54:26,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:54:26,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:54:26,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:54:26,754 INFO L87 Difference]: Start difference. First operand 234 states and 253 transitions. Second operand 4 states. [2020-09-24 17:54:27,370 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:54:28,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:54:28,202 INFO L93 Difference]: Finished difference Result 343 states and 385 transitions. [2020-09-24 17:54:28,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:54:28,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:54:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:54:28,208 INFO L225 Difference]: With dead ends: 343 [2020-09-24 17:54:28,209 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 17:54:28,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:54:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 17:54:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-24 17:54:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 17:54:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 240 transitions. [2020-09-24 17:54:28,252 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 240 transitions. Word has length 143 [2020-09-24 17:54:28,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:54:28,253 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 240 transitions. [2020-09-24 17:54:28,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:54:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 240 transitions. [2020-09-24 17:54:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:54:28,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:54:28,256 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] [2020-09-24 17:54:28,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:54:28,256 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:54:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:54:28,256 INFO L82 PathProgramCache]: Analyzing trace with hash 512450906, now seen corresponding path program 1 times [2020-09-24 17:54:28,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:54:28,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486006085] [2020-09-24 17:54:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:54:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:28,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:28,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:29,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:54:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:54:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 17:54:33,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:54:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:54:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:54:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:33,583 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:33,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:54:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:54:33,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 17:54:33,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:54:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:54:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:54:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:54:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:54:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:33,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:54:33,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:54:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:54:33,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:54:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:54:33,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:54:33,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:54:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:33,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:54:33,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:54:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:33,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:33,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:54:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:33,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:33,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:33,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:33,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:33,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:33,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:33,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:54:33,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:33,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:33,791 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 17:54:33,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486006085] [2020-09-24 17:54:33,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:54:33,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:54:33,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311597294] [2020-09-24 17:54:33,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:54:33,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:54:33,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:54:33,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:54:33,795 INFO L87 Difference]: Start difference. First operand 224 states and 240 transitions. Second operand 5 states. [2020-09-24 17:54:34,474 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:54:35,789 INFO L93 Difference]: Finished difference Result 518 states and 601 transitions. [2020-09-24 17:54:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:54:35,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:54:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:54:35,795 INFO L225 Difference]: With dead ends: 518 [2020-09-24 17:54:35,795 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 17:54:35,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 17:54:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 17:54:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-24 17:54:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 17:54:35,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2020-09-24 17:54:35,863 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 156 [2020-09-24 17:54:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:54:35,864 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2020-09-24 17:54:35,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:54:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2020-09-24 17:54:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 17:54:35,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:54:35,866 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] [2020-09-24 17:54:35,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:54:35,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:54:35,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:54:35,867 INFO L82 PathProgramCache]: Analyzing trace with hash 16391841, now seen corresponding path program 1 times [2020-09-24 17:54:35,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:54:35,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695504859] [2020-09-24 17:54:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:54:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:35,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:36,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:40,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 17:54:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:54:40,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:54:41,347 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:54:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:54:41,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 17:54:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:54:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:41,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:54:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:41,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:41,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:54:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:41,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:54:41,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:54:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:54:41,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:41,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 17:54:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:54:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:54:41,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:54:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:54:41,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:54:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:54:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:54:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:54:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:54:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:41,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:54:41,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:54:41,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:54:41,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:54:41,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:54:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:54:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:54:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:54:41,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:54:41,760 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 17:54:41,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695504859] [2020-09-24 17:54:41,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:54:41,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:54:41,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808099334] [2020-09-24 17:54:41,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:54:41,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:54:41,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:54:41,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:54:41,764 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand 9 states. [2020-09-24 17:54:42,239 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:43,303 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:43,620 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:54:43,932 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:44,275 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:54:44,575 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:54:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:54:44,780 INFO L93 Difference]: Finished difference Result 527 states and 614 transitions. [2020-09-24 17:54:44,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:54:44,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 17:54:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:54:44,784 INFO L225 Difference]: With dead ends: 527 [2020-09-24 17:54:44,784 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:54:44,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:54:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:54:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:54:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:54:44,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:54:44,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 17:54:44,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:54:44,794 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:54:44,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:54:44,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:54:44,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:54:44,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:54:44,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:54:45,003 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:45,165 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:45,286 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:54:45,447 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:45,604 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:45,757 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:45,909 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:46,071 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:46,225 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:46,358 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:54:46,471 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 17:54:46,796 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:47,117 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:47,431 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:54:47,571 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:47,720 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:47,869 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:48,019 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:48,165 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:48,313 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:48,460 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:48,605 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:48,750 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:48,898 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:49,046 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:49,195 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:49,510 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:49,824 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:50,136 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:50,369 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:54:50,617 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:50,765 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:50,915 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:51,063 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:51,207 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:51,354 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:51,514 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:51,659 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:51,806 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:51,954 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:52,106 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:52,355 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:52,498 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:52,650 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:52,968 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:53,283 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:53,602 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:54:53,847 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:54:53,995 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:54,144 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:54,288 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:54,532 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:54,686 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:54,841 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:54,984 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:55,135 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:55,284 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:55,431 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:54:55,574 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:54:55,987 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 17:54:56,180 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:56,384 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:54:56,608 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:56,812 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:57,015 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-24 17:54:57,265 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:54:57,669 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 17:54:57,873 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:54:58,170 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 17:54:58,566 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 17:54:58,797 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:54:59,185 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-09-24 17:54:59,372 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:54:59,772 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 17:54:59,975 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:00,186 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:55:00,396 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:00,777 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 17:55:00,978 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:01,175 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1