/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:05:46,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:05:46,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:05:46,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:05:46,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:05:46,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:05:46,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:05:46,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:05:46,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:05:46,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:05:46,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:05:46,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:05:46,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:05:46,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:05:46,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:05:46,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:05:46,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:05:46,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:05:46,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:05:46,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:05:46,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:05:46,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:05:46,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:05:46,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:05:46,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:05:46,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:05:46,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:05:46,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:05:46,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:05:46,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:05:46,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:05:46,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:05:46,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:05:46,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:05:46,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:05:46,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:05:46,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:05:46,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:05:46,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:05:46,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:05:46,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:05:46,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:05:46,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:05:46,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:05:46,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:05:46,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:05:46,520 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:05:46,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:05:46,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:05:46,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:05:46,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:05:46,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:05:46,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:05:46,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:05:46,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:05:46,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:05:46,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:05:46,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:05:46,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:05:46,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:05:46,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:05:46,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:05:46,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:05:46,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:05:46,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:05:46,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:05:46,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:05:46,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:05:46,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:05:46,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:05:46,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:05:46,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:05:46,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:05:47,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:05:47,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:05:47,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:05:47,012 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:05:47,013 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 12:05:47,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fe01f52f/507e89d6c65148d096b17f6f358eb9a9/FLAG24a3257fc [2020-09-25 12:05:47,683 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:05:47,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 12:05:47,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fe01f52f/507e89d6c65148d096b17f6f358eb9a9/FLAG24a3257fc [2020-09-25 12:05:47,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5fe01f52f/507e89d6c65148d096b17f6f358eb9a9 [2020-09-25 12:05:47,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:05:47,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:05:47,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:05:47,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:05:47,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:05:47,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:05:47" (1/1) ... [2020-09-25 12:05:47,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd6b12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:47, skipping insertion in model container [2020-09-25 12:05:47,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:05:47" (1/1) ... [2020-09-25 12:05:47,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:05:48,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:05:48,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:05:48,409 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:05:48,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:05:48,682 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:05:48,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48 WrapperNode [2020-09-25 12:05:48,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:05:48,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:05:48,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:05:48,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:05:48,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... [2020-09-25 12:05:48,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:05:48,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:05:48,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:05:48,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:05:48,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:05:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:05:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:05:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:05:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:05:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:05:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:05:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:05:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:05:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:05:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:05:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:05:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:05:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:05:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:05:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:05:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:05:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:05:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:05:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:05:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:05:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:05:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:05:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:05:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 12:05:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:05:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:05:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:05:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:05:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:05:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:05:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:05:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:05:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:05:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:05:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:05:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:05:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:05:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:05:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:05:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:05:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:05:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:05:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:05:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:05:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:05:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:05:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:05:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:05:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:05:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:05:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:05:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:05:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:05:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:05:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:05:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:05:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:05:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:05:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:05:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:05:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:05:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:05:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:05:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:05:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:05:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:05:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:05:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:05:50,067 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:05:50,069 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:05:50,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:05:50 BoogieIcfgContainer [2020-09-25 12:05:50,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:05:50,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:05:50,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:05:50,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:05:50,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:05:47" (1/3) ... [2020-09-25 12:05:50,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68830128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:05:50, skipping insertion in model container [2020-09-25 12:05:50,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:05:48" (2/3) ... [2020-09-25 12:05:50,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68830128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:05:50, skipping insertion in model container [2020-09-25 12:05:50,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:05:50" (3/3) ... [2020-09-25 12:05:50,092 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2020-09-25 12:05:50,105 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:05:50,121 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:05:50,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:05:50,171 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:05:50,171 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:05:50,171 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:05:50,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:05:50,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:05:50,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:05:50,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:05:50,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:05:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-25 12:05:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:05:50,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:05:50,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:05:50,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:05:50,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:05:50,230 INFO L82 PathProgramCache]: Analyzing trace with hash -769040823, now seen corresponding path program 1 times [2020-09-25 12:05:50,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:05:50,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188067917] [2020-09-25 12:05:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:05:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:50,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:55,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:55,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:05:55,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:05:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:05:55,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:55,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:55,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:05:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:05:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:05:55,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 12:05:56,197 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:05:56,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:05:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:05:56,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 12:05:56,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:05:56,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:05:56,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:05:56,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:05:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:05:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:05:56,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:05:56,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:05:56,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:05:56,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:05:56,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:05:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:05:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:05:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:05:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:05:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:05:56,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:05:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:05:56,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:05:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:05:56,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:05:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:05:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:05:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:05:56,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:05:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:05:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:05:56,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:05:56,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:05:56,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:05:56,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:05:56,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:05:56,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:05:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:05:56,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:05:56,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:05:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:05:56,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:05:56,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:05:56,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:05:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:05:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:05:56,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:05:56,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:05:56,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:05:56,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:05:56,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:05:56,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:05:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:05:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:05:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:05:56,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:05:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:05:56,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188067917] [2020-09-25 12:05:56,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:05:56,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:05:56,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051295907] [2020-09-25 12:05:56,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:05:56,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:05:57,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:05:57,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:05:57,025 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 5 states. [2020-09-25 12:05:57,794 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:05:58,641 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:00,664 INFO L93 Difference]: Finished difference Result 685 states and 861 transitions. [2020-09-25 12:06:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:06:00,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 12:06:00,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:00,690 INFO L225 Difference]: With dead ends: 685 [2020-09-25 12:06:00,690 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 12:06:00,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:06:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 12:06:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 416. [2020-09-25 12:06:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-25 12:06:00,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 471 transitions. [2020-09-25 12:06:00,876 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 471 transitions. Word has length 142 [2020-09-25 12:06:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:00,878 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 471 transitions. [2020-09-25 12:06:00,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:06:00,878 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 471 transitions. [2020-09-25 12:06:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 12:06:00,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:00,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:06:00,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:06:00,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:00,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:00,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1801037233, now seen corresponding path program 1 times [2020-09-25 12:06:00,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:00,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110308932] [2020-09-25 12:06:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:02,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:05,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:06:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:05,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:06:05,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:05,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:06:05,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 12:06:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,329 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:06,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:06,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 12:06:06,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:06:06,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:06,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:06:06,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:06,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:06,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:06,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:06,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:06:06,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:06,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:06,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:06:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:06,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:06:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:06,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:06:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:06:06,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:06,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:06:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:06,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:06,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:06,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:06,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:06:06,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110308932] [2020-09-25 12:06:06,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:06,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:06:06,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418527229] [2020-09-25 12:06:06,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:06:06,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:06,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:06:06,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:06:06,827 INFO L87 Difference]: Start difference. First operand 416 states and 471 transitions. Second operand 9 states. [2020-09-25 12:06:07,384 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:08,619 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:08,917 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:09,345 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:09,712 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:10,014 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:10,365 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:10,661 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:12,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:12,162 INFO L93 Difference]: Finished difference Result 1241 states and 1627 transitions. [2020-09-25 12:06:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:06:12,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 12:06:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:12,173 INFO L225 Difference]: With dead ends: 1241 [2020-09-25 12:06:12,173 INFO L226 Difference]: Without dead ends: 935 [2020-09-25 12:06:12,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:06:12,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-09-25 12:06:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 701. [2020-09-25 12:06:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-09-25 12:06:12,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 835 transitions. [2020-09-25 12:06:12,299 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 835 transitions. Word has length 151 [2020-09-25 12:06:12,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:12,300 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 835 transitions. [2020-09-25 12:06:12,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:06:12,300 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 835 transitions. [2020-09-25 12:06:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:06:12,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:12,304 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] [2020-09-25 12:06:12,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:06:12,305 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash 121120648, now seen corresponding path program 1 times [2020-09-25 12:06:12,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:12,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919385245] [2020-09-25 12:06:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:12,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:12,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:17,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:06:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:06:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 12:06:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:17,736 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:18,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 12:06:18,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:06:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:18,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:18,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:18,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:18,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:18,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:18,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:18,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:06:18,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:18,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:18,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:18,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:18,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:18,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:06:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:18,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:18,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:06:18,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:18,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:06:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:18,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 12:06:18,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:18,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:18,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:18,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:06:18,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:18,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:18,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:06:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:18,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:18,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:18,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:06:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:18,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:18,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:06:18,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919385245] [2020-09-25 12:06:18,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:18,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:06:18,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379524838] [2020-09-25 12:06:18,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:06:18,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:18,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:06:18,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:06:18,208 INFO L87 Difference]: Start difference. First operand 701 states and 835 transitions. Second operand 6 states. [2020-09-25 12:06:18,816 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:19,983 INFO L93 Difference]: Finished difference Result 1167 states and 1458 transitions. [2020-09-25 12:06:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:06:19,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 12:06:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:19,994 INFO L225 Difference]: With dead ends: 1167 [2020-09-25 12:06:19,994 INFO L226 Difference]: Without dead ends: 545 [2020-09-25 12:06:20,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:06:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-09-25 12:06:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 514. [2020-09-25 12:06:20,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-09-25 12:06:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 570 transitions. [2020-09-25 12:06:20,194 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 570 transitions. Word has length 156 [2020-09-25 12:06:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:20,195 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 570 transitions. [2020-09-25 12:06:20,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:06:20,195 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 570 transitions. [2020-09-25 12:06:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 12:06:20,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:20,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:06:20,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:06:20,199 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:20,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1031176059, now seen corresponding path program 1 times [2020-09-25 12:06:20,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:20,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393976117] [2020-09-25 12:06:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:20,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:20,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:21,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:22,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 12:06:25,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 12:06:25,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:06:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 12:06:25,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:25,627 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:25,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:25,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 12:06:25,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:06:25,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:25,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:25,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:25,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:25,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:25,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:25,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:25,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:25,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:25,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:06:25,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:25,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:25,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:25,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:06:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:25,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:25,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:25,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:06:25,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:25,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 12:06:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:25,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:25,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:06:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:06:25,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:25,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:06:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:06:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:06:25,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:25,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:06:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:26,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:26,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:26,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:26,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:26,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:26,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:26,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 12:06:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:26,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:26,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:06:26,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:26,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:06:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:06:26,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393976117] [2020-09-25 12:06:26,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:26,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:06:26,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122388594] [2020-09-25 12:06:26,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:06:26,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:26,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:06:26,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:06:26,073 INFO L87 Difference]: Start difference. First operand 514 states and 570 transitions. Second operand 11 states. [2020-09-25 12:06:26,591 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:27,867 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:28,185 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:28,459 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:28,777 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:06:29,109 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:29,575 INFO L93 Difference]: Finished difference Result 590 states and 675 transitions. [2020-09-25 12:06:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 12:06:29,576 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 12:06:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:29,577 INFO L225 Difference]: With dead ends: 590 [2020-09-25 12:06:29,577 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:06:29,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-09-25 12:06:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:06:29,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:06:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:06:29,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:06:29,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 12:06:29,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:29,581 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:06:29,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:06:29,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:06:29,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:06:29,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:06:29,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:06:29,863 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:30,066 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:06:30,251 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:30,447 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:30,993 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 19 [2020-09-25 12:06:31,269 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:06:31,634 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 12:06:32,010 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 188 [2020-09-25 12:06:32,472 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 12:06:32,838 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:06:33,095 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:06:33,359 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 189 [2020-09-25 12:06:33,809 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 12:06:33,972 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:34,139 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:34,349 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:34,511 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:06:34,670 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 16 [2020-09-25 12:06:34,833 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:35,006 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:06:35,164 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:35,330 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191