/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=WIDEST --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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:00:03,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:00:03,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:00:03,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:00:03,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:00:03,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:00:03,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:00:03,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:00:03,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:00:03,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:00:03,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:00:03,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:00:03,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:00:03,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:00:03,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:00:03,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:00:03,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:00:03,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:00:03,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:00:03,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:00:03,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:00:03,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:00:03,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:00:03,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:00:03,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:00:03,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:00:03,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:00:03,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:00:03,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:00:03,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:00:03,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:00:03,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:00:03,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:00:03,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:00:03,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:00:03,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:00:03,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:00:03,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:00:03,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:00:03,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:00:03,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:00:03,816 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 03:00:03,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:00:03,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:00:03,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:00:03,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:00:03,862 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:00:03,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:00:03,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:00:03,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:00:03,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:00:03,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:00:03,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:00:03,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:00:03,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:00:03,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:00:03,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:00:03,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:00:03,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:00:03,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:00:03,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:00:03,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:00:03,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:00:03,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:00:03,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:00:03,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:00:03,869 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:00:04,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:00:04,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:00:04,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:00:04,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:00:04,434 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:00:04,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-25 03:00:04,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44b8f9f85/8f2cd31b80c64902864847156983d5e8/FLAG44141e359 [2020-09-25 03:00:05,218 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:00:05,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2020-09-25 03:00:05,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44b8f9f85/8f2cd31b80c64902864847156983d5e8/FLAG44141e359 [2020-09-25 03:00:05,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44b8f9f85/8f2cd31b80c64902864847156983d5e8 [2020-09-25 03:00:05,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:00:05,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:00:05,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:00:05,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:00:05,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:00:05,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:05" (1/1) ... [2020-09-25 03:00:05,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:05, skipping insertion in model container [2020-09-25 03:00:05,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:00:05" (1/1) ... [2020-09-25 03:00:05,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:00:05,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:00:06,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:00:06,100 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:00:06,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:00:06,284 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:00:06,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06 WrapperNode [2020-09-25 03:00:06,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:00:06,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:00:06,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:00:06,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:00:06,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (1/1) ... [2020-09-25 03:00:06,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:00:06,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:00:06,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:00:06,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:00:06,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (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 03:00:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:00:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:00:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:00:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:00:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:00:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:00:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:00:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:00:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:00:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:00:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:00:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:00:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:00:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:00:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:00:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 03:00:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:00:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:00:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:00:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:00:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:00:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:00:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:00:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:00:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 03:00:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 03:00:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:00:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:00:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:00:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:00:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:00:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:00:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:00:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:00:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 03:00:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:00:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:00:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:00:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:00:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:00:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:00:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:00:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:00:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:00:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:00:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:00:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:00:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:00:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:00:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:00:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:00:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:00:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 03:00:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 03:00:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:00:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:00:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:00:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:00:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:00:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:00:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:00:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:00:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:00:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:00:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:00:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:00:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:00:07,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:00:07,715 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:00:07,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:07 BoogieIcfgContainer [2020-09-25 03:00:07,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:00:07,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:00:07,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:00:07,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:00:07,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:00:05" (1/3) ... [2020-09-25 03:00:07,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580e18e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:07, skipping insertion in model container [2020-09-25 03:00:07,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:00:06" (2/3) ... [2020-09-25 03:00:07,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580e18e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:00:07, skipping insertion in model container [2020-09-25 03:00:07,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:00:07" (3/3) ... [2020-09-25 03:00:07,732 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-09-25 03:00:07,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:00:07,757 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:00:07,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:00:07,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:00:07,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:00:07,811 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:00:07,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:00:07,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:00:07,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:00:07,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:00:07,812 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:00:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states. [2020-09-25 03:00:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 03:00:07,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:07,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:07,866 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:07,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1710422987, now seen corresponding path program 1 times [2020-09-25 03:00:07,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:07,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758871144] [2020-09-25 03:00:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:08,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:13,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:13,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 03:00:13,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:00:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 03:00:13,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:13,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:00:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:00:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 03:00:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 03:00:13,825 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:13,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:13,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:14,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 03:00:14,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:00:14,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:14,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:00:14,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:14,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:00:14,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:14,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:00:14,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:14,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:14,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:14,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 03:00:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:14,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:00:14,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:14,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 03:00:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:00:14,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:00:14,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:14,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 03:00:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:14,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:14,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:14,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:14,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:14,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:14,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:14,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:14,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:14,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:14,545 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 03:00:14,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758871144] [2020-09-25 03:00:14,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:14,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:00:14,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327382942] [2020-09-25 03:00:14,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:00:14,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:14,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:00:14,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:00:14,589 INFO L87 Difference]: Start difference. First operand 358 states. Second operand 8 states. [2020-09-25 03:00:15,266 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:17,137 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:00:17,549 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:00:17,992 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:00:18,511 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:18,833 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:00:19,171 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:00:19,496 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:00:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:21,392 INFO L93 Difference]: Finished difference Result 799 states and 984 transitions. [2020-09-25 03:00:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:00:21,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 03:00:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:21,418 INFO L225 Difference]: With dead ends: 799 [2020-09-25 03:00:21,418 INFO L226 Difference]: Without dead ends: 552 [2020-09-25 03:00:21,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:00:21,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-25 03:00:21,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 500. [2020-09-25 03:00:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2020-09-25 03:00:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 573 transitions. [2020-09-25 03:00:21,593 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 573 transitions. Word has length 153 [2020-09-25 03:00:21,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:21,595 INFO L479 AbstractCegarLoop]: Abstraction has 500 states and 573 transitions. [2020-09-25 03:00:21,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:00:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 573 transitions. [2020-09-25 03:00:21,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 03:00:21,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:21,603 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] [2020-09-25 03:00:21,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:00:21,603 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:21,604 INFO L82 PathProgramCache]: Analyzing trace with hash 527455135, now seen corresponding path program 1 times [2020-09-25 03:00:21,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:21,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785955314] [2020-09-25 03:00:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:21,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:21,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:26,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:26,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 03:00:26,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:00:26,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-25 03:00:26,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:26,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:00:26,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 03:00:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:00:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:26,998 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:27,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 03:00:27,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:00:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:27,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:27,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:00:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:00:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:27,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:00:27,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:27,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:00:27,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 03:00:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:27,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:27,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:27,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:27,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:00:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:27,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:27,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:00:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:27,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:27,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:27,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:27,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:27,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:27,409 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 03:00:27,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785955314] [2020-09-25 03:00:27,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:27,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:00:27,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036692912] [2020-09-25 03:00:27,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:00:27,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:27,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:00:27,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:00:27,414 INFO L87 Difference]: Start difference. First operand 500 states and 573 transitions. Second operand 5 states. [2020-09-25 03:00:27,930 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:31,136 INFO L93 Difference]: Finished difference Result 1367 states and 1653 transitions. [2020-09-25 03:00:31,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:00:31,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-25 03:00:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:31,148 INFO L225 Difference]: With dead ends: 1367 [2020-09-25 03:00:31,148 INFO L226 Difference]: Without dead ends: 977 [2020-09-25 03:00:31,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:00:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-09-25 03:00:31,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 865. [2020-09-25 03:00:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2020-09-25 03:00:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1005 transitions. [2020-09-25 03:00:31,307 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1005 transitions. Word has length 159 [2020-09-25 03:00:31,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:31,308 INFO L479 AbstractCegarLoop]: Abstraction has 865 states and 1005 transitions. [2020-09-25 03:00:31,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:00:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1005 transitions. [2020-09-25 03:00:31,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 03:00:31,318 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:31,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:31,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:00:31,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:31,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:31,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1806151262, now seen corresponding path program 1 times [2020-09-25 03:00:31,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:31,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993989853] [2020-09-25 03:00:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:31,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:31,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:32,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:33,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:36,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:36,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 03:00:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:00:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 03:00:36,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:00:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:00:36,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:00:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:36,758 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:36,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:36,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:37,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 03:00:37,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:00:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:37,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:37,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:37,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:37,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:37,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:37,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:37,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:37,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:00:37,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:37,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:00:37,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 03:00:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:37,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:00:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 03:00:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:00:37,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:00:37,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:00:37,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:00:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:00:37,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:00:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:00:37,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:00:37,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:00:37,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:00:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:00:37,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:00:37,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:00:37,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:37,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:00:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:00:37,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:00:37,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:37,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:37,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 03:00:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:37,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:37,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 03:00:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:37,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:37,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:37,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 03:00:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:37,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:37,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:37,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:37,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:37,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:37,301 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 03:00:37,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993989853] [2020-09-25 03:00:37,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:37,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:00:37,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742778587] [2020-09-25 03:00:37,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:00:37,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:37,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:00:37,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:00:37,305 INFO L87 Difference]: Start difference. First operand 865 states and 1005 transitions. Second operand 7 states. [2020-09-25 03:00:37,795 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:39,666 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:41,945 INFO L93 Difference]: Finished difference Result 2267 states and 2893 transitions. [2020-09-25 03:00:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 03:00:41,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-09-25 03:00:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:41,956 INFO L225 Difference]: With dead ends: 2267 [2020-09-25 03:00:41,956 INFO L226 Difference]: Without dead ends: 1512 [2020-09-25 03:00:41,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:00:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-25 03:00:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1285. [2020-09-25 03:00:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2020-09-25 03:00:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1497 transitions. [2020-09-25 03:00:42,136 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1497 transitions. Word has length 186 [2020-09-25 03:00:42,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:42,137 INFO L479 AbstractCegarLoop]: Abstraction has 1285 states and 1497 transitions. [2020-09-25 03:00:42,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:00:42,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1497 transitions. [2020-09-25 03:00:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 03:00:42,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:42,142 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 03:00:42,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:00:42,143 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:42,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1555840203, now seen corresponding path program 1 times [2020-09-25 03:00:42,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:42,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696583571] [2020-09-25 03:00:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:00:42,209 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:00:42,209 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:00:42,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:00:42,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:00:42 BoogieIcfgContainer [2020-09-25 03:00:42,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:00:42,254 INFO L168 Benchmark]: Toolchain (without parser) took 36820.15 ms. Allocated memory was 146.3 MB in the beginning and 625.0 MB in the end (delta: 478.7 MB). Free memory was 101.5 MB in the beginning and 320.8 MB in the end (delta: -219.3 MB). Peak memory consumption was 259.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,255 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.80 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 168.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,258 INFO L168 Benchmark]: Boogie Preprocessor took 98.03 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 163.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,264 INFO L168 Benchmark]: RCFGBuilder took 1338.31 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.7 MB in the beginning and 168.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,265 INFO L168 Benchmark]: TraceAbstraction took 34527.29 ms. Allocated memory was 235.4 MB in the beginning and 625.0 MB in the end (delta: 389.5 MB). Free memory was 166.7 MB in the beginning and 320.8 MB in the end (delta: -154.1 MB). Peak memory consumption was 235.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:42,277 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 844.80 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 100.8 MB in the beginning and 168.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.03 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 163.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1338.31 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 163.7 MB in the beginning and 168.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34527.29 ms. Allocated memory was 235.4 MB in the beginning and 625.0 MB in the end (delta: 389.5 MB). Free memory was 166.7 MB in the beginning and 320.8 MB in the end (delta: -154.1 MB). Peak memory consumption was 235.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 [L454] COND TRUE 1 [L456] COND TRUE splverifierCounter < 4 [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) [L466] CALL waterRise() [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 [L466] RET waterRise() [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) [L492] CALL stopSystem() [L432] COND FALSE !(\read(pumpRunning)) [L439] systemActive = 0 [L492] RET stopSystem() [L499] CALL timeShift() [L196] COND FALSE !(\read(pumpRunning)) [L203] COND FALSE !(\read(systemActive)) [L211] CALL __utac_acc__Specification3_spec__1() [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L631] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L631] RET, EXPR isMethaneLevelCritical() [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L637] CALL, EXPR getWaterLevel() [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L637] RET, EXPR getWaterLevel() [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L641] CALL, EXPR isPumpRunning() [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); [L641] RET, EXPR isPumpRunning() [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) [L647] CALL __automaton_fail() [L619] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 670 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1033 SDtfs, 1921 SDslu, 1220 SDs, 0 SdLazy, 3196 SolverSat, 720 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1285occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 391 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 675 NumberOfCodeBlocks, 675 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 495 ConstructedInterpolants, 0 QuantifiedInterpolants, 218815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...