/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:06:19,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:06:19,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:06:19,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:06:19,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:06:19,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:06:19,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:06:19,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:06:19,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:06:19,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:06:19,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:06:19,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:06:19,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:06:19,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:06:19,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:06:19,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:06:19,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:06:19,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:06:19,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:06:19,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:06:19,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:06:19,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:06:19,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:06:19,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:06:19,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:06:19,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:06:19,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:06:19,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:06:19,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:06:19,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:06:19,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:06:19,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:06:19,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:06:19,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:06:19,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:06:19,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:06:19,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:06:19,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:06:19,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:06:19,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:06:19,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:06:19,547 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 04:06:19,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:06:19,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:06:19,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:06:19,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:06:19,584 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:06:19,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:06:19,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:06:19,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:06:19,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:06:19,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:06:19,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:06:19,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:06:19,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:06:19,587 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:06:19,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:06:19,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:06:19,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:06:19,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:06:19,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:06:19,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:06:19,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:06:19,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:06:19,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:06:19,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:06:19,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:06:19,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:06:19,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:06:19,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:06:19,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:06:19,592 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 04:06:20,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:06:20,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:06:20,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:06:20,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:06:20,083 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:06:20,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 04:06:20,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a20fc14/907b9fb24f3c4194ac29e457d7ea2582/FLAGe99550808 [2020-09-25 04:06:20,801 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:06:20,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 04:06:20,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a20fc14/907b9fb24f3c4194ac29e457d7ea2582/FLAGe99550808 [2020-09-25 04:06:21,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7a20fc14/907b9fb24f3c4194ac29e457d7ea2582 [2020-09-25 04:06:21,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:06:21,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:06:21,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:21,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:06:21,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:06:21,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21, skipping insertion in model container [2020-09-25 04:06:21,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:06:21,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:06:21,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:21,626 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:06:21,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:21,920 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:06:21,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21 WrapperNode [2020-09-25 04:06:21,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:21,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:06:21,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:06:21,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:06:21,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:21,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:22,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:22,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (1/1) ... [2020-09-25 04:06:22,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:06:22,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:06:22,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:06:22,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:06:22,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (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 04:06:22,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:06:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:06:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:06:22,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:06:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:06:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:06:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:06:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:06:22,100 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:06:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:06:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:06:22,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:06:22,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:06:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:06:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:06:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:06:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:06:22,103 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:06:22,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:06:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:06:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:06:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:06:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:06:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:06:22,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:06:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:06:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:06:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:06:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:06:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:06:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:06:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:06:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:06:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:06:22,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:06:23,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:06:23,325 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:06:23,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:23 BoogieIcfgContainer [2020-09-25 04:06:23,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:06:23,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:06:23,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:06:23,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:06:23,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:06:21" (1/3) ... [2020-09-25 04:06:23,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6db02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:23, skipping insertion in model container [2020-09-25 04:06:23,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:21" (2/3) ... [2020-09-25 04:06:23,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6db02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:23, skipping insertion in model container [2020-09-25 04:06:23,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:23" (3/3) ... [2020-09-25 04:06:23,342 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 04:06:23,355 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:06:23,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:06:23,392 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:06:23,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:06:23,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:06:23,428 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:06:23,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:06:23,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:06:23,428 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:06:23,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:06:23,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:06:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 04:06:23,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:06:23,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:23,481 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 04:06:23,482 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 04:06:23,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:23,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330992691] [2020-09-25 04:06:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:24,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:28,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:28,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:06:28,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:06:28,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-25 04:06:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:28,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:06:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:28,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 04:06:29,489 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:29,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 04:06:29,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:29,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:29,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:29,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:29,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:29,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:06:29,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:29,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:29,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:29,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:06:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:29,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:29,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:29,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:06:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:29,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:06:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:29,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:29,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:29,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:29,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:29,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:29,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:29,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:29,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:29,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:29,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:29,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:29,863 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 04:06:29,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330992691] [2020-09-25 04:06:29,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:29,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:06:29,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238716694] [2020-09-25 04:06:29,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:06:29,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:29,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:06:29,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:06:29,902 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 04:06:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:31,324 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 04:06:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:06:31,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:06:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:31,347 INFO L225 Difference]: With dead ends: 458 [2020-09-25 04:06:31,347 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 04:06:31,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:06:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 04:06:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 04:06:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 04:06:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 04:06:31,480 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 04:06:31,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:31,483 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 04:06:31,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:06:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 04:06:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:06:31,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:31,501 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 04:06:31,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:06:31,502 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:31,502 INFO L82 PathProgramCache]: Analyzing trace with hash -809983640, now seen corresponding path program 1 times [2020-09-25 04:06:31,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:31,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712475028] [2020-09-25 04:06:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:31,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:33,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:36,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:36,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:06:36,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:06:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 04:06:36,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:36,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:06:36,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:06:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:36,970 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:36,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:36,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:37,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:06:37,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:37,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:37,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:37,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:37,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:06:37,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:37,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:37,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:06:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:37,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:06:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:06:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:37,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:37,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:37,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:37,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:37,273 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 04:06:37,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712475028] [2020-09-25 04:06:37,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:37,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:06:37,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082950512] [2020-09-25 04:06:37,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:06:37,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:37,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:06:37,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:06:37,281 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 04:06:38,118 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:06:39,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:39,431 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 04:06:39,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:06:39,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:06:39,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:39,436 INFO L225 Difference]: With dead ends: 365 [2020-09-25 04:06:39,437 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 04:06:39,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:06:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 04:06:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 04:06:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 04:06:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 04:06:39,524 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 04:06:39,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:39,526 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 04:06:39,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:06:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 04:06:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:06:39,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:39,529 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 04:06:39,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:06:39,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:39,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1505861819, now seen corresponding path program 1 times [2020-09-25 04:06:39,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:39,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028091010] [2020-09-25 04:06:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:39,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:39,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:42,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:42,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 04:06:42,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:06:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3172 [2020-09-25 04:06:42,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:42,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:06:42,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:06:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,188 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:43,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:43,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 04:06:43,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:43,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:43,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:06:43,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:43,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:43,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:06:43,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:06:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:43,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:43,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:06:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:06:43,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:06:43,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:43,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:06:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:06:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:43,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:43,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:43,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:06:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:43,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:43,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:43,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:06:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:43,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:43,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:43,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:43,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:06:43,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:43,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:43,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:43,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:43,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:43,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:43,628 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 04:06:43,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028091010] [2020-09-25 04:06:43,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:43,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:06:43,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880266783] [2020-09-25 04:06:43,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:06:43,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:06:43,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:06:43,634 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 04:06:44,336 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:45,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:45,880 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 04:06:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:06:45,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 04:06:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:45,886 INFO L225 Difference]: With dead ends: 551 [2020-09-25 04:06:45,886 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 04:06:45,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:06:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 04:06:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 04:06:45,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 04:06:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 04:06:45,970 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 04:06:45,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:45,971 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 04:06:45,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:06:45,972 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 04:06:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:06:45,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:45,975 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] [2020-09-25 04:06:45,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:06:45,975 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:45,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:45,976 INFO L82 PathProgramCache]: Analyzing trace with hash 955206154, now seen corresponding path program 1 times [2020-09-25 04:06:46,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:46,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541880875] [2020-09-25 04:06:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:46,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:47,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:47,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:06:47,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1827 [2020-09-25 04:06:47,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:47,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:06:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 04:06:47,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:06:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:06:48,350 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:48,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 04:06:48,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:06:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:48,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:48,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:48,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:48,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:48,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:48,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:06:48,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:48,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:48,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:48,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:06:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:06:48,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:06:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:06:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:06:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:48,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:48,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 04:06:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:48,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:06:48,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:06:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:06:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:48,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:48,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:48,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:48,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:48,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:48,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:48,984 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 04:06:48,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541880875] [2020-09-25 04:06:48,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:48,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:06:48,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245004294] [2020-09-25 04:06:48,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:06:48,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:48,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:06:48,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:06:48,987 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 10 states. [2020-09-25 04:06:49,455 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:51,310 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:51,684 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:52,044 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:52,424 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:52,752 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:06:53,081 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:53,393 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:53,850 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:54,675 INFO L93 Difference]: Finished difference Result 928 states and 1119 transitions. [2020-09-25 04:06:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:06:54,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 04:06:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:54,681 INFO L225 Difference]: With dead ends: 928 [2020-09-25 04:06:54,681 INFO L226 Difference]: Without dead ends: 688 [2020-09-25 04:06:54,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:06:54,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-25 04:06:54,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 583. [2020-09-25 04:06:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 04:06:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 661 transitions. [2020-09-25 04:06:54,766 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 661 transitions. Word has length 172 [2020-09-25 04:06:54,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:54,767 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 661 transitions. [2020-09-25 04:06:54,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:06:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 661 transitions. [2020-09-25 04:06:54,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 04:06:54,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:54,771 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] [2020-09-25 04:06:54,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:06:54,772 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:54,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:54,772 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 04:06:54,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:54,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221823994] [2020-09-25 04:06:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:06:54,846 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:06:54,846 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:06:54,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:06:54,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:06:54 BoogieIcfgContainer [2020-09-25 04:06:54,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:06:54,881 INFO L168 Benchmark]: Toolchain (without parser) took 33753.98 ms. Allocated memory was 138.9 MB in the beginning and 662.7 MB in the end (delta: 523.8 MB). Free memory was 101.7 MB in the beginning and 433.2 MB in the end (delta: -331.5 MB). Peak memory consumption was 192.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,882 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.67 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 172.0 MB in the end (delta: -71.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,884 INFO L168 Benchmark]: Boogie Preprocessor took 93.22 ms. Allocated memory is still 202.4 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,885 INFO L168 Benchmark]: RCFGBuilder took 1317.63 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 167.7 MB in the beginning and 178.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,886 INFO L168 Benchmark]: TraceAbstraction took 31545.63 ms. Allocated memory was 234.4 MB in the beginning and 662.7 MB in the end (delta: 428.3 MB). Free memory was 178.3 MB in the beginning and 433.2 MB in the end (delta: -254.9 MB). Peak memory consumption was 173.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:54,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.67 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 172.0 MB in the end (delta: -71.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.22 ms. Allocated memory is still 202.4 MB. Free memory was 172.0 MB in the beginning and 167.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1317.63 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 167.7 MB in the beginning and 178.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31545.63 ms. Allocated memory was 234.4 MB in the beginning and 662.7 MB in the end (delta: 428.3 MB). Free memory was 178.3 MB in the beginning and 433.2 MB in the end (delta: -254.9 MB). Peak memory consumption was 173.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L516] CALL test() [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) [L787] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L787] RET waterRise() [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) [L815] CALL stopSystem() [L745] COND FALSE !(\read(pumpRunning)) [L752] systemActive = 0 [L815] RET stopSystem() [L822] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND FALSE !(\read(systemActive)) [L612] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L927] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1432 SDslu, 867 SDs, 0 SdLazy, 1988 SolverSat, 506 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 254693 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...