/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:57:22,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:57:22,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:57:22,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:57:22,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:57:22,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:57:22,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:57:22,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:57:22,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:57:22,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:57:22,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:57:22,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:57:22,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:57:22,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:57:22,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:57:22,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:57:22,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:57:22,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:57:22,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:57:22,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:57:22,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:57:22,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:57:22,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:57:22,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:57:22,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:57:22,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:57:22,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:57:22,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:57:22,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:57:22,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:57:22,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:57:22,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:57:22,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:57:22,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:57:22,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:57:22,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:57:22,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:57:22,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:57:22,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:57:22,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:57:22,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:57:22,487 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 [2020-10-12 17:57:22,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:57:22,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:57:22,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:57:22,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:57:22,515 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:57:22,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:57:22,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:57:22,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:57:22,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:57:22,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:57:22,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:57:22,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:57:22,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:57:22,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:57:22,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:57:22,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:57:22,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:57:22,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:57:22,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:57:22,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:57:22,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:57:22,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:57:22,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:57:22,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:57:22,525 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 17:57:22,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:57:22,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:57:22,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:57:22,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:57:22,850 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:57:22,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-12 17:57:22,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc6805a6/6edcf1c7fdca4e89a54b9e762401d9a7/FLAG27d4b9021 [2020-10-12 17:57:23,431 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:57:23,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-12 17:57:23,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc6805a6/6edcf1c7fdca4e89a54b9e762401d9a7/FLAG27d4b9021 [2020-10-12 17:57:23,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fc6805a6/6edcf1c7fdca4e89a54b9e762401d9a7 [2020-10-12 17:57:23,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:57:23,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:57:23,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:57:23,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:57:23,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:57:23,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:23" (1/1) ... [2020-10-12 17:57:23,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9f236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:23, skipping insertion in model container [2020-10-12 17:57:23,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:57:23" (1/1) ... [2020-10-12 17:57:23,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:57:23,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:57:24,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:57:24,298 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:57:24,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:57:24,436 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:57:24,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24 WrapperNode [2020-10-12 17:57:24,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:57:24,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:57:24,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:57:24,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:57:24,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (1/1) ... [2020-10-12 17:57:24,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:57:24,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:57:24,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:57:24,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:57:24,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (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 [2020-10-12 17:57:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:57:24,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:57:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:57:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:57:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:57:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:57:24,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:57:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:57:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:57:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:57:24,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:57:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:57:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:57:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-12 17:57:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:57:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-12 17:57:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:57:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:57:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:57:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:57:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:57:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:57:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:57:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:57:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:57:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:57:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:57:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:57:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:57:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-12 17:57:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:57:24,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:57:24,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:57:24,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:57:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:57:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:57:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:57:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:57:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:57:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:57:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:57:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-12 17:57:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:57:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:57:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:57:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:57:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:57:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:57:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:57:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:57:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:57:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:57:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:57:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:57:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:57:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:57:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:57:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:57:24,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:57:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:57:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:57:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:57:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:57:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:57:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:57:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:57:25,608 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:57:25,609 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:57:25,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:25 BoogieIcfgContainer [2020-10-12 17:57:25,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:57:25,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:57:25,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:57:25,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:57:25,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:57:23" (1/3) ... [2020-10-12 17:57:25,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487b285b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:25, skipping insertion in model container [2020-10-12 17:57:25,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:57:24" (2/3) ... [2020-10-12 17:57:25,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487b285b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:57:25, skipping insertion in model container [2020-10-12 17:57:25,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:57:25" (3/3) ... [2020-10-12 17:57:25,623 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-10-12 17:57:25,633 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:57:25,641 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:57:25,656 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:57:25,682 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:57:25,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:57:25,682 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:57:25,683 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:57:25,683 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:57:25,683 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:57:25,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:57:25,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:57:25,707 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-12 17:57:25,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 17:57:25,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:25,721 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] [2020-10-12 17:57:25,722 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:25,728 INFO L82 PathProgramCache]: Analyzing trace with hash -586231627, now seen corresponding path program 1 times [2020-10-12 17:57:25,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:25,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19020457] [2020-10-12 17:57:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:26,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:26,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:27,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 17:57:28,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:57:28,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2422 [2020-10-12 17:57:28,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:57:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:57:28,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 17:57:28,809 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:57:28,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:57:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:28,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-12 17:57:28,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:57:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:57:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:28,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:28,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:28,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:57:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:28,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:28,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:28,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:57:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:28,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:28,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:28,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:57:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:28,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:28,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:57:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:28,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:28,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:28,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:57:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:28,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:28,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:28,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:28,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:28,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:57:28,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:57:28,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:28,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:28,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:29,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-12 17:57:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:29,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:29,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:29,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:29,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:57:29,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19020457] [2020-10-12 17:57:29,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:57:29,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:57:29,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080631752] [2020-10-12 17:57:29,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:57:29,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:57:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:57:29,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:57:29,057 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 7 states. [2020-10-12 17:57:29,591 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:57:30,901 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:57:31,432 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-10-12 17:57:31,870 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:57:32,214 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:57:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:57:33,663 INFO L93 Difference]: Finished difference Result 445 states and 599 transitions. [2020-10-12 17:57:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 17:57:33,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-12 17:57:33,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:57:33,688 INFO L225 Difference]: With dead ends: 445 [2020-10-12 17:57:33,688 INFO L226 Difference]: Without dead ends: 288 [2020-10-12 17:57:33,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:57:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-12 17:57:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 248. [2020-10-12 17:57:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-12 17:57:33,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 305 transitions. [2020-10-12 17:57:33,898 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 305 transitions. Word has length 52 [2020-10-12 17:57:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:57:33,899 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 305 transitions. [2020-10-12 17:57:33,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:57:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 305 transitions. [2020-10-12 17:57:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 17:57:33,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:33,922 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] [2020-10-12 17:57:33,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:57:33,923 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:33,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:33,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1700879303, now seen corresponding path program 1 times [2020-10-12 17:57:33,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:33,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957495274] [2020-10-12 17:57:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:34,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:34,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:34,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:35,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:38,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:38,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 17:57:38,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:57:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 17:57:38,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-12 17:57:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 17:57:38,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,341 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:57:39,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:57:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 17:57:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:57:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:57:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:39,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:39,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:39,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:57:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:39,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:57:39,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:57:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:57:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:39,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:57:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:57:39,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:57:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 17:57:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 17:57:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 17:57:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:57:39,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-12 17:57:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:57:39,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:57:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 17:57:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:39,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:39,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:39,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:39,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:39,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:39,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:57:39,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957495274] [2020-10-12 17:57:39,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:57:39,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 17:57:39,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997887462] [2020-10-12 17:57:39,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 17:57:39,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:57:39,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 17:57:39,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 17:57:39,615 INFO L87 Difference]: Start difference. First operand 248 states and 305 transitions. Second operand 10 states. [2020-10-12 17:57:40,101 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:57:40,815 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:57:41,449 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:57:42,197 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-12 17:57:42,583 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:57:42,873 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:57:43,206 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:57:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:57:45,357 INFO L93 Difference]: Finished difference Result 669 states and 890 transitions. [2020-10-12 17:57:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 17:57:45,360 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-12 17:57:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:57:45,367 INFO L225 Difference]: With dead ends: 669 [2020-10-12 17:57:45,367 INFO L226 Difference]: Without dead ends: 510 [2020-10-12 17:57:45,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-12 17:57:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-12 17:57:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 430. [2020-10-12 17:57:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-12 17:57:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 522 transitions. [2020-10-12 17:57:45,474 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 522 transitions. Word has length 57 [2020-10-12 17:57:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:57:45,474 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 522 transitions. [2020-10-12 17:57:45,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 17:57:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 522 transitions. [2020-10-12 17:57:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 17:57:45,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:45,477 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] [2020-10-12 17:57:45,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:57:45,478 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:45,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1228151669, now seen corresponding path program 1 times [2020-10-12 17:57:45,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:45,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356278411] [2020-10-12 17:57:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:45,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:45,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:45,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-12 17:57:45,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-12 17:57:45,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 17:57:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 17:57:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,208 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:57:46,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:57:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 17:57:46,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:57:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:46,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:57:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:46,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:46,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:57:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:46,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:57:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:57:46,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:46,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:57:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:57:46,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:57:46,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 17:57:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:57:46,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:57:46,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:57:46,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:57:46,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:57:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 17:57:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 17:57:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 17:57:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:57:46,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:57:46,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:57:46,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:57:46,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:57:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:57:46,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:57:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:57:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:57:46,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:57:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:57:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:57:46,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356278411] [2020-10-12 17:57:46,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:57:46,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 17:57:46,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992617132] [2020-10-12 17:57:46,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 17:57:46,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:57:46,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 17:57:46,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 17:57:46,411 INFO L87 Difference]: Start difference. First operand 430 states and 522 transitions. Second operand 5 states. [2020-10-12 17:57:46,721 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:57:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:57:49,040 INFO L93 Difference]: Finished difference Result 1362 states and 1722 transitions. [2020-10-12 17:57:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 17:57:49,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-10-12 17:57:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:57:49,049 INFO L225 Difference]: With dead ends: 1362 [2020-10-12 17:57:49,050 INFO L226 Difference]: Without dead ends: 956 [2020-10-12 17:57:49,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:57:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-10-12 17:57:49,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 805. [2020-10-12 17:57:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-12 17:57:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 989 transitions. [2020-10-12 17:57:49,230 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 989 transitions. Word has length 62 [2020-10-12 17:57:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:57:49,231 INFO L479 AbstractCegarLoop]: Abstraction has 805 states and 989 transitions. [2020-10-12 17:57:49,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 17:57:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 989 transitions. [2020-10-12 17:57:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-12 17:57:49,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:57:49,235 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] [2020-10-12 17:57:49,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:57:49,235 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:57:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:57:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1293290686, now seen corresponding path program 1 times [2020-10-12 17:57:49,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:57:49,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462417601] [2020-10-12 17:57:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:57:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:57:49,273 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:57:49,273 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:57:49,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:57:49,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:57:49 BoogieIcfgContainer [2020-10-12 17:57:49,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:57:49,301 INFO L168 Benchmark]: Toolchain (without parser) took 25582.30 ms. Allocated memory was 141.0 MB in the beginning and 604.0 MB in the end (delta: 462.9 MB). Free memory was 102.2 MB in the beginning and 299.7 MB in the end (delta: -197.5 MB). Peak memory consumption was 265.5 MB. Max. memory is 7.1 GB. [2020-10-12 17:57:49,302 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 17:57:49,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.04 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 171.1 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-12 17:57:49,303 INFO L168 Benchmark]: Boogie Preprocessor took 93.65 ms. Allocated memory is still 203.4 MB. Free memory was 171.1 MB in the beginning and 167.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-12 17:57:49,304 INFO L168 Benchmark]: RCFGBuilder took 1083.16 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 191.9 MB in the end (delta: -24.8 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-10-12 17:57:49,305 INFO L168 Benchmark]: TraceAbstraction took 23683.60 ms. Allocated memory was 234.9 MB in the beginning and 604.0 MB in the end (delta: 369.1 MB). Free memory was 191.9 MB in the beginning and 299.7 MB in the end (delta: -107.8 MB). Peak memory consumption was 261.3 MB. Max. memory is 7.1 GB. [2020-10-12 17:57:49,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.04 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 171.1 MB in the end (delta: -69.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.65 ms. Allocated memory is still 203.4 MB. Free memory was 171.1 MB in the beginning and 167.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1083.16 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 191.9 MB in the end (delta: -24.8 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23683.60 ms. Allocated memory was 234.9 MB in the beginning and 604.0 MB in the end (delta: 369.1 MB). Free memory was 191.9 MB in the beginning and 299.7 MB in the end (delta: -107.8 MB). Peak memory consumption was 261.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L445] int retValue_acc ; [L446] int tmp ; [L450] FCALL select_helpers() [L451] FCALL select_features() [L452] CALL, EXPR valid_product() [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] return (retValue_acc); [L452] RET, EXPR valid_product() [L452] tmp = valid_product() [L454] COND TRUE \read(tmp) [L456] FCALL setup() [L457] CALL runTest() [L436] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND TRUE \read(tmp) [L287] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L287] RET waterRise() [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] COND TRUE \read(tmp___1) [L315] CALL stopSystem() [L242] COND FALSE !(\read(pumpRunning)) [L249] systemActive = 0 [L315] RET stopSystem() [L322] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND FALSE !(\read(systemActive)) [L83] CALL __utac_acc__Specification3_spec__1() [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L342] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L342] RET, EXPR isMethaneLevelCritical() [L342] tmp = isMethaneLevelCritical() [L344] COND FALSE !(\read(tmp)) [L348] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L348] RET, EXPR getWaterLevel() [L348] tmp___0 = getWaterLevel() [L350] COND TRUE tmp___0 == 2 [L352] CALL, EXPR isPumpRunning() [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] return (retValue_acc); [L352] RET, EXPR isPumpRunning() [L352] tmp___1 = isPumpRunning() [L354] COND FALSE !(\read(tmp___1)) [L358] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 537 SDtfs, 1053 SDslu, 660 SDs, 0 SdLazy, 2819 SolverSat, 718 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred 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, 271 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 52544 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...