/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:42:01,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:42:01,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:42:01,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:42:01,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:42:01,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:42:01,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:42:01,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:42:01,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:42:01,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:42:01,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:42:01,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:42:01,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:42:01,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:42:01,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:42:01,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:42:01,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:42:01,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:42:01,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:42:01,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:42:01,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:42:01,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:42:01,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:42:01,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:42:01,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:42:01,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:42:01,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:42:01,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:42:01,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:42:01,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:42:01,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:42:01,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:42:01,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:42:01,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:42:01,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:42:01,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:42:01,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:42:01,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:42:01,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:42:01,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:42:01,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:42:01,442 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 16:42:01,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:42:01,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:42:01,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:42:01,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:42:01,492 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:42:01,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:42:01,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:42:01,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:42:01,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:42:01,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:42:01,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:42:01,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:42:01,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:42:01,497 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:42:01,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:42:01,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:42:01,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:42:01,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:42:01,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:42:01,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:42:01,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:42:01,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:01,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:42:01,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:42:01,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:42:01,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:42:01,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:42:01,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:42:01,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:42:01,501 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;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;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;log-additional-information=true; [2020-09-24 16:42:02,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:42:02,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:42:02,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:42:02,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:42:02,807 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:42:02,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-24 16:42:02,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926da8265/523c96425ec7456f9436c58a98ed5763/FLAGfa53a4ad8 [2020-09-24 16:42:03,526 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:42:03,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product08.cil.c [2020-09-24 16:42:03,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926da8265/523c96425ec7456f9436c58a98ed5763/FLAGfa53a4ad8 [2020-09-24 16:42:03,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926da8265/523c96425ec7456f9436c58a98ed5763 [2020-09-24 16:42:03,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:42:03,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:42:03,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:03,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:42:03,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:42:03,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad693f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:03, skipping insertion in model container [2020-09-24 16:42:03,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:42:03,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:42:04,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,367 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:42:04,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,598 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:42:04,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04 WrapperNode [2020-09-24 16:42:04,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:04,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:42:04,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:42:04,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:42:04,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:42:04,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:42:04,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (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 16:42:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:42:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:42:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:42:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:42:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:42:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:42:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:42:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:42:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:42:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:42:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:42:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:42:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:42:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:42:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:42:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:42:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:42:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:42:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:42:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:42:06,062 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:42:06,063 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:42:06,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:06 BoogieIcfgContainer [2020-09-24 16:42:06,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:42:06,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:42:06,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:42:06,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:42:06,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:42:03" (1/3) ... [2020-09-24 16:42:06,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d0dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (2/3) ... [2020-09-24 16:42:06,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3d0dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:06" (3/3) ... [2020-09-24 16:42:06,084 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product08.cil.c [2020-09-24 16:42:06,097 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:42:06,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:42:06,133 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:42:06,172 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:42:06,173 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:42:06,173 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:42:06,173 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:42:06,173 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:42:06,173 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:42:06,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:42:06,174 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:42:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-09-24 16:42:06,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:42:06,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:06,228 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 16:42:06,229 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 79669502, now seen corresponding path program 1 times [2020-09-24 16:42:06,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:06,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905167554] [2020-09-24 16:42:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:07,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:09,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:23,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:42:23,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17103 [2020-09-24 16:42:23,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:42:23,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:42:23,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:42:23,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:42:24,174 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:24,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:24,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 16:42:24,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:42:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:24,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:42:24,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:24,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:24,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:24,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:24,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:24,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:24,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:42:24,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:24,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:24,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:42:24,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:24,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:24,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:24,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:24,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:24,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:24,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:42:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:42:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:24,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:24,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:24,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:24,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:24,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:24,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:24,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:24,712 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 16:42:24,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905167554] [2020-09-24 16:42:24,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:24,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:42:24,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352230586] [2020-09-24 16:42:24,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:42:24,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:24,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:42:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:42:24,751 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 4 states. [2020-09-24 16:42:25,360 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:27,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:27,363 INFO L93 Difference]: Finished difference Result 557 states and 687 transitions. [2020-09-24 16:42:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:42:27,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 16:42:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:27,407 INFO L225 Difference]: With dead ends: 557 [2020-09-24 16:42:27,408 INFO L226 Difference]: Without dead ends: 394 [2020-09-24 16:42:27,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 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 16:42:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-24 16:42:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 326. [2020-09-24 16:42:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-09-24 16:42:27,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 365 transitions. [2020-09-24 16:42:27,554 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 365 transitions. Word has length 142 [2020-09-24 16:42:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:27,555 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 365 transitions. [2020-09-24 16:42:27,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:42:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 365 transitions. [2020-09-24 16:42:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-24 16:42:27,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:27,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:42:27,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:42:27,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:27,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1237011768, now seen corresponding path program 1 times [2020-09-24 16:42:27,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:27,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127887055] [2020-09-24 16:42:27,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:28,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:33,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:46,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:46,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:42:46,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18991 [2020-09-24 16:42:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:42:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-24 16:42:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 16:42:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 16:42:46,975 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:46,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:47,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 16:42:47,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:47,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:47,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:47,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:47,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:47,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:47,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:47,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:47,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:42:47,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:42:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:42:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:42:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:42:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:42:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:47,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:47,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 16:42:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:47,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:47,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:47,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 16:42:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:47,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:47,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:47,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:47,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:47,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:47,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:47,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:42:47,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:47,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:47,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:47,314 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 16:42:47,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127887055] [2020-09-24 16:42:47,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:47,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:42:47,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075422121] [2020-09-24 16:42:47,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:42:47,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:47,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:42:47,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:42:47,318 INFO L87 Difference]: Start difference. First operand 326 states and 365 transitions. Second operand 9 states. [2020-09-24 16:42:47,969 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:49,442 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 16:42:50,005 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-24 16:42:50,334 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:50,628 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:50,899 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:51,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:51,125 INFO L93 Difference]: Finished difference Result 523 states and 615 transitions. [2020-09-24 16:42:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:42:51,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-24 16:42:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:51,131 INFO L225 Difference]: With dead ends: 523 [2020-09-24 16:42:51,132 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:42:51,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:42:51,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:42:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:42:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:42:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:42:51,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2020-09-24 16:42:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:51,141 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:42:51,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:42:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:42:51,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:42:51,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:42:51,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:42:51,347 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:51,507 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:51,666 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:51,915 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 16:42:52,173 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 16:42:52,325 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:52,576 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:52,725 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:52,878 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:53,127 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 186