/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:06:22,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:06:22,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:06:22,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:06:22,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:06:22,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:06:22,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:06:22,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:06:22,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:06:22,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:06:22,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:06:22,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:06:22,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:06:22,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:06:22,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:06:22,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:06:22,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:06:22,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:06:22,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:06:22,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:06:22,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:06:22,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:06:22,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:06:22,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:06:22,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:06:22,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:06:22,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:06:22,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:06:22,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:06:22,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:06:22,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:06:22,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:06:22,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:06:22,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:06:22,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:06:22,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:06:22,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:06:22,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:06:22,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:06:22,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:06:22,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:06:22,880 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 04:06:22,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:06:22,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:06:22,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:06:22,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:06:22,910 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:06:22,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:06:22,911 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:06:22,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:06:22,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:06:22,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:06:22,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:06:22,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:06:22,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:06:22,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:06:22,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:06:22,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:06:22,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:06:22,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:06:22,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:06:22,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:06:22,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:06:22,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:06:22,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:06:22,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:06:22,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:06:22,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:06:22,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:06:22,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:06:22,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:06:22,915 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:06:23,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:06:23,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:06:23,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:06:23,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:06:23,400 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:06:23,401 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-25 04:06:23,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/790aab7e0/aae7d404e98f4ac2ac47362817fe52a9/FLAGb0eac6675 [2020-09-25 04:06:24,140 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:06:24,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-25 04:06:24,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/790aab7e0/aae7d404e98f4ac2ac47362817fe52a9/FLAGb0eac6675 [2020-09-25 04:06:24,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/790aab7e0/aae7d404e98f4ac2ac47362817fe52a9 [2020-09-25 04:06:24,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:06:24,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:06:24,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:24,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:06:24,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:06:24,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:24" (1/1) ... [2020-09-25 04:06:24,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3310a15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:24, skipping insertion in model container [2020-09-25 04:06:24,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:24" (1/1) ... [2020-09-25 04:06:24,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:06:24,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:06:25,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:25,098 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:06:25,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:25,222 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:06:25,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25 WrapperNode [2020-09-25 04:06:25,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:25,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:06:25,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:06:25,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:06:25,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (1/1) ... [2020-09-25 04:06:25,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:06:25,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:06:25,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:06:25,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:06:25,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (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 04:06:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:06:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:06:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:06:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:06:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:06:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:06:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:06:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:06:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:06:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:06:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:06:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:06:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:06:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:06:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:06:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:06:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:06:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:06:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:06:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:06:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:06:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:06:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:06:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:06:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:06:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:06:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:06:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:06:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:06:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:06:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:06:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:06:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:06:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:06:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:06:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:06:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:06:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:06:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:06:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:06:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:06:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:06:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:06:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:06:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:06:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:06:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:06:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:06:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:06:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:06:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:06:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:06:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:06:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:06:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:06:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:06:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:06:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:06:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:06:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:06:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:06:26,793 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:06:26,794 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:06:26,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:26 BoogieIcfgContainer [2020-09-25 04:06:26,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:06:26,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:06:26,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:06:26,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:06:26,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:06:24" (1/3) ... [2020-09-25 04:06:26,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49af9b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:26, skipping insertion in model container [2020-09-25 04:06:26,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:25" (2/3) ... [2020-09-25 04:06:26,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49af9b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:26, skipping insertion in model container [2020-09-25 04:06:26,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:26" (3/3) ... [2020-09-25 04:06:26,811 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-09-25 04:06:26,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:06:26,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:06:26,857 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:06:26,886 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:06:26,886 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:06:26,886 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:06:26,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:06:26,887 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:06:26,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:06:26,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:06:26,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:06:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 04:06:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:06:26,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:26,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:26,939 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:26,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times [2020-09-25 04:06:26,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:26,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320352558] [2020-09-25 04:06:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:27,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:27,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:32,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:32,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:06:32,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:06:32,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 04:06:32,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:32,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:06:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:06:32,712 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:32,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:32,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 04:06:32,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:32,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:32,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:32,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:32,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:32,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:32,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:32,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:32,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:32,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:32,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:32,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:32,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:32,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:32,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:33,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:33,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:33,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:33,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:33,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:33,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:33,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:33,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:33,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:33,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:33,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:33,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:33,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:33,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:33,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:33,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:33,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:33,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:06:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:33,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:33,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:33,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:33,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:33,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:33,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:33,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:33,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:06:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:33,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:33,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:06:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:33,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:33,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:33,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:33,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:33,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:33,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:33,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:33,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:33,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:33,106 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 04:06:33,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320352558] [2020-09-25 04:06:33,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:33,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:06:33,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839671121] [2020-09-25 04:06:33,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:06:33,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:33,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:06:33,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:06:33,147 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 04:06:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:34,574 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-25 04:06:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:06:34,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:06:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:34,598 INFO L225 Difference]: With dead ends: 486 [2020-09-25 04:06:34,598 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 04:06:34,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:06:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 04:06:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 04:06:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 04:06:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 04:06:34,718 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-09-25 04:06:34,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:34,721 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 04:06:34,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:06:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 04:06:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:06:34,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:34,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:34,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:06:34,738 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash -197104449, now seen corresponding path program 1 times [2020-09-25 04:06:34,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:34,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774468136] [2020-09-25 04:06:34,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:34,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:36,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:39,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:06:39,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:06:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 04:06:39,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:39,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:06:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:06:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,128 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:40,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:40,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 04:06:40,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:40,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:40,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:40,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:40,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:40,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:40,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:06:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:40,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:06:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:40,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:06:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:40,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:40,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:40,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:40,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:06:40,353 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 04:06:40,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774468136] [2020-09-25 04:06:40,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:40,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:06:40,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474418036] [2020-09-25 04:06:40,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:06:40,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:40,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:06:40,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:06:40,360 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-09-25 04:06:41,083 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:06:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:42,201 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-09-25 04:06:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:06:42,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:06:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:42,207 INFO L225 Difference]: With dead ends: 399 [2020-09-25 04:06:42,207 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 04:06:42,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:06:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 04:06:42,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 04:06:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:06:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 04:06:42,251 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-09-25 04:06:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:42,252 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 04:06:42,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:06:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 04:06:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:06:42,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:42,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:42,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:06:42,256 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:42,256 INFO L82 PathProgramCache]: Analyzing trace with hash 2051029771, now seen corresponding path program 1 times [2020-09-25 04:06:42,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:42,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630633947] [2020-09-25 04:06:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 04:06:45,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:06:45,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3081 [2020-09-25 04:06:45,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:06:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:06:45,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:45,683 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:45,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:45,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:06:45,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:45,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:45,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:45,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:45,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:45,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:45,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:45,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:45,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:06:45,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:06:45,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:45,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:45,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:06:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:06:45,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:06:45,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:06:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:45,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:06:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:45,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:06:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:45,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:45,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:45,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:06:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:45,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:45,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:45,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:45,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:45,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:45,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:45,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:45,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:45,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:45,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:46,116 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 04:06:46,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630633947] [2020-09-25 04:06:46,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:46,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:06:46,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892481134] [2020-09-25 04:06:46,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:06:46,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:46,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:06:46,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:06:46,125 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-25 04:06:46,613 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:47,628 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-09-25 04:06:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:06:47,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 04:06:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:47,632 INFO L225 Difference]: With dead ends: 445 [2020-09-25 04:06:47,633 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 04:06:47,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:06:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 04:06:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 04:06:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:06:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-25 04:06:47,675 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-09-25 04:06:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:47,676 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-25 04:06:47,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:06:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-25 04:06:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 04:06:47,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:47,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:47,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:06:47,681 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:47,681 INFO L82 PathProgramCache]: Analyzing trace with hash -292228132, now seen corresponding path program 1 times [2020-09-25 04:06:47,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:47,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333762121] [2020-09-25 04:06:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:49,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:49,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 04:06:49,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:49,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-09-25 04:06:49,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:49,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:06:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 04:06:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 04:06:49,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:06:49,909 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:49,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:50,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 04:06:50,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:06:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:50,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:50,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:50,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:06:50,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:50,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:50,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:50,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:06:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:06:50,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:50,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:06:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:06:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:06:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:06:50,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:06:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:06:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:06:50,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:50,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:50,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:06:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:50,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:50,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:50,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:06:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:50,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:50,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 04:06:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:06:50,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:06:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 04:06:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:50,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:50,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:50,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:50,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:50,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:50,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:50,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:50,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:50,614 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 04:06:50,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333762121] [2020-09-25 04:06:50,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:50,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:06:50,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036935757] [2020-09-25 04:06:50,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:06:50,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:50,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:06:50,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:06:50,619 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states. [2020-09-25 04:06:51,373 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:53,810 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:54,217 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:54,559 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:54,885 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:06:55,174 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:55,714 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:56,079 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:56,408 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:57,318 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions. [2020-09-25 04:06:57,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:06:57,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-25 04:06:57,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:57,325 INFO L225 Difference]: With dead ends: 697 [2020-09-25 04:06:57,325 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 04:06:57,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:06:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 04:06:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385. [2020-09-25 04:06:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-25 04:06:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions. [2020-09-25 04:06:57,404 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180 [2020-09-25 04:06:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:57,404 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions. [2020-09-25 04:06:57,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:06:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions. [2020-09-25 04:06:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 04:06:57,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:57,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:57,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:06:57,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:57,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times [2020-09-25 04:06:57,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:57,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516641988] [2020-09-25 04:06:57,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:06:57,472 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:06:57,472 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:06:57,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:06:57,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:06:57 BoogieIcfgContainer [2020-09-25 04:06:57,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:06:57,507 INFO L168 Benchmark]: Toolchain (without parser) took 33040.21 ms. Allocated memory was 140.0 MB in the beginning and 626.0 MB in the end (delta: 486.0 MB). Free memory was 101.9 MB in the beginning and 279.7 MB in the end (delta: -177.8 MB). Peak memory consumption was 308.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,508 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.08 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 169.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,509 INFO L168 Benchmark]: Boogie Preprocessor took 145.74 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,510 INFO L168 Benchmark]: RCFGBuilder took 1432.47 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.7 MB in the beginning and 172.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,511 INFO L168 Benchmark]: TraceAbstraction took 30701.74 ms. Allocated memory was 235.9 MB in the beginning and 626.0 MB in the end (delta: 390.1 MB). Free memory was 172.5 MB in the beginning and 279.7 MB in the end (delta: -107.2 MB). Peak memory consumption was 282.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:57,515 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.08 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 169.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.74 ms. Allocated memory is still 202.9 MB. Free memory was 169.6 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1432.47 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.7 MB in the beginning and 172.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30701.74 ms. Allocated memory was 235.9 MB in the beginning and 626.0 MB in the end (delta: 390.1 MB). Free memory was 172.5 MB in the beginning and 279.7 MB in the end (delta: -107.2 MB). Peak memory consumption was 282.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L224] int retValue_acc ; [L225] int tmp ; [L229] FCALL select_helpers() [L230] FCALL select_features() [L231] CALL, EXPR valid_product() [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); [L231] RET, EXPR valid_product() [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) [L235] FCALL setup() [L236] CALL runTest() [L215] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND TRUE \read(tmp) [L495] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L495] RET waterRise() [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L515] CALL startSystem() [L468] systemActive = 1 [L515] RET startSystem() [L528] CALL timeShift() [L294] COND FALSE !(\read(pumpRunning)) [L301] COND TRUE \read(systemActive) [L303] CALL processEnvironment() [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L367] CALL processEnvironment__wrappee__lowWaterSensor() [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L341] FCALL processEnvironment__wrappee__base() [L367] RET processEnvironment__wrappee__lowWaterSensor() [L303] RET processEnvironment() [L309] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1447 SDslu, 940 SDs, 0 SdLazy, 2325 SolverSat, 493 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 260063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...