/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 --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:14:46,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 15:14:46,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 15:14:46,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 15:14:46,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 15:14:46,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 15:14:46,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 15:14:46,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 15:14:46,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 15:14:46,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 15:14:46,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 15:14:46,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 15:14:46,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:14:46,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:14:46,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:14:46,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:14:46,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:14:46,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:14:46,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:14:46,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:14:46,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:14:46,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:14:46,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:14:46,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:14:46,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 15:14:46,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 15:14:46,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 15:14:46,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 15:14:46,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 15:14:46,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 15:14:46,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 15:14:46,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 15:14:46,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 15:14:46,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 15:14:46,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 15:14:46,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 15:14:46,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 15:14:46,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 15:14:46,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:14:46,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:14:46,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:14:46,556 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 [2020-08-18 15:14:46,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:14:46,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:14:46,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:14:46,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:14:46,592 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:14:46,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:14:46,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:14:46,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:14:46,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:14:46,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:14:46,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:14:46,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:14:46,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:14:46,595 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:14:46,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:14:46,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:14:46,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:14:46,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:14:46,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:14:46,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:14:46,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:14:46,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:14:46,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:14:46,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:14:46,599 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.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-18 15:14:46,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:14:46,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:14:46,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:14:46,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:14:46,946 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:14:46,947 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-08-18 15:14:47,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d511bbd/ca8aa4cb67aa47b686dd17fd3164b1b7/FLAG9252da59e [2020-08-18 15:14:47,488 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:14:47,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-08-18 15:14:47,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d511bbd/ca8aa4cb67aa47b686dd17fd3164b1b7/FLAG9252da59e [2020-08-18 15:14:47,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d511bbd/ca8aa4cb67aa47b686dd17fd3164b1b7 [2020-08-18 15:14:47,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:14:47,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:14:47,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:14:47,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:14:47,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:14:47,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:14:47" (1/1) ... [2020-08-18 15:14:47,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:47, skipping insertion in model container [2020-08-18 15:14:47,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:14:47" (1/1) ... [2020-08-18 15:14:47,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:14:47,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:14:48,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:14:48,360 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:14:48,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:14:48,513 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:14:48,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48 WrapperNode [2020-08-18 15:14:48,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:14:48,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:14:48,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:14:48,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:14:48,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... [2020-08-18 15:14:48,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:14:48,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:14:48,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:14:48,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:14:48,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:14:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:14:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:14:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 15:14:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-18 15:14:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 15:14:48,746 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 15:14:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 15:14:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 15:14:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:14:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 15:14:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 15:14:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 15:14:48,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 15:14:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 15:14:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 15:14:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 15:14:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 15:14:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 15:14:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 15:14:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 15:14:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 15:14:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 15:14:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 15:14:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 15:14:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 15:14:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 15:14:48,752 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 15:14:48,753 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 15:14:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 15:14:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 15:14:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 15:14:48,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 15:14:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 15:14:48,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 15:14:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:14:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:14:48,755 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 15:14:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 15:14:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 15:14:48,756 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 15:14:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-18 15:14:48,757 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 15:14:48,759 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 15:14:48,760 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 15:14:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 15:14:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 15:14:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 15:14:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:14:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 15:14:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 15:14:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 15:14:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 15:14:48,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 15:14:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 15:14:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 15:14:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 15:14:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 15:14:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 15:14:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 15:14:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 15:14:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 15:14:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 15:14:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:14:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 15:14:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:14:49,816 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:14:49,816 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 15:14:49,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:14:49 BoogieIcfgContainer [2020-08-18 15:14:49,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:14:49,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:14:49,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:14:49,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:14:49,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:14:47" (1/3) ... [2020-08-18 15:14:49,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382d3e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:14:49, skipping insertion in model container [2020-08-18 15:14:49,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:14:48" (2/3) ... [2020-08-18 15:14:49,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382d3e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:14:49, skipping insertion in model container [2020-08-18 15:14:49,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:14:49" (3/3) ... [2020-08-18 15:14:49,830 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-08-18 15:14:49,840 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:14:49,848 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:14:49,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:14:49,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:14:49,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:14:49,887 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:14:49,888 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:14:49,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:14:49,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:14:49,888 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:14:49,888 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:14:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-08-18 15:14:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-18 15:14:49,921 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:14:49,922 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] [2020-08-18 15:14:49,923 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:14:49,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:14:49,929 INFO L82 PathProgramCache]: Analyzing trace with hash 922466731, now seen corresponding path program 1 times [2020-08-18 15:14:49,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:14:49,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147732748] [2020-08-18 15:14:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:14:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,646 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:14:50,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:14:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:14:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:14:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:14:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:14:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 15:14:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 15:14:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:14:50,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147732748] [2020-08-18 15:14:50,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:14:50,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 15:14:50,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961074910] [2020-08-18 15:14:50,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 15:14:50,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:14:50,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 15:14:50,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 15:14:50,752 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 3 states. [2020-08-18 15:14:51,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:14:51,938 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2020-08-18 15:14:51,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 15:14:51,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-18 15:14:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:14:51,955 INFO L225 Difference]: With dead ends: 297 [2020-08-18 15:14:51,956 INFO L226 Difference]: Without dead ends: 160 [2020-08-18 15:14:51,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 15:14:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-18 15:14:52,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-08-18 15:14:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-18 15:14:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-08-18 15:14:52,055 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2020-08-18 15:14:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:14:52,055 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-08-18 15:14:52,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 15:14:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-08-18 15:14:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-18 15:14:52,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:14:52,061 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] [2020-08-18 15:14:52,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:14:52,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:14:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:14:52,065 INFO L82 PathProgramCache]: Analyzing trace with hash 288176866, now seen corresponding path program 1 times [2020-08-18 15:14:52,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:14:52,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388532655] [2020-08-18 15:14:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:14:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,444 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:14:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:14:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:14:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:14:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:14:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:14:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 15:14:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:14:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:14:52,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388532655] [2020-08-18 15:14:52,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:14:52,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 15:14:52,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977528435] [2020-08-18 15:14:52,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 15:14:52,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:14:52,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 15:14:52,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 15:14:52,492 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 4 states. [2020-08-18 15:14:52,931 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:14:53,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:14:53,683 INFO L93 Difference]: Finished difference Result 230 states and 279 transitions. [2020-08-18 15:14:53,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:14:53,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-18 15:14:53,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:14:53,688 INFO L225 Difference]: With dead ends: 230 [2020-08-18 15:14:53,688 INFO L226 Difference]: Without dead ends: 144 [2020-08-18 15:14:53,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:14:53,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-08-18 15:14:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-08-18 15:14:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-18 15:14:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-08-18 15:14:53,727 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2020-08-18 15:14:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:14:53,728 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-08-18 15:14:53,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 15:14:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-08-18 15:14:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 15:14:53,730 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:14:53,730 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] [2020-08-18 15:14:53,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:14:53,731 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:14:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:14:53,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2059632594, now seen corresponding path program 1 times [2020-08-18 15:14:53,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:14:53,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115876651] [2020-08-18 15:14:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:14:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,034 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:14:54,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:14:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:14:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:14:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:14:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:14:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 15:14:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 15:14:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:14:54,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115876651] [2020-08-18 15:14:54,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:14:54,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 15:14:54,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716405444] [2020-08-18 15:14:54,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:14:54,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:14:54,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:14:54,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:14:54,100 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 8 states. [2020-08-18 15:14:54,468 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:14:54,781 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:14:55,037 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:14:55,261 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:14:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:14:56,337 INFO L93 Difference]: Finished difference Result 239 states and 293 transitions. [2020-08-18 15:14:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:14:56,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 15:14:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:14:56,341 INFO L225 Difference]: With dead ends: 239 [2020-08-18 15:14:56,343 INFO L226 Difference]: Without dead ends: 144 [2020-08-18 15:14:56,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:14:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-08-18 15:14:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-08-18 15:14:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-18 15:14:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-08-18 15:14:56,394 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2020-08-18 15:14:56,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:14:56,394 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-08-18 15:14:56,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:14:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-08-18 15:14:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 15:14:56,396 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:14:56,397 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] [2020-08-18 15:14:56,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:14:56,397 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:14:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:14:56,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1182566725, now seen corresponding path program 1 times [2020-08-18 15:14:56,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:14:56,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367727843] [2020-08-18 15:14:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:14:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,682 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:14:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:14:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:14:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:14:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:14:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:14:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 15:14:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:14:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:14:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 15:14:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 15:14:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:14:56,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367727843] [2020-08-18 15:14:56,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:14:56,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 15:14:56,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498066876] [2020-08-18 15:14:56,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:14:56,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:14:56,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:14:56,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:14:56,766 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 6 states. [2020-08-18 15:14:57,145 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:14:58,228 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:14:58,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:14:58,821 INFO L93 Difference]: Finished difference Result 331 states and 409 transitions. [2020-08-18 15:14:58,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 15:14:58,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-18 15:14:58,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:14:58,825 INFO L225 Difference]: With dead ends: 331 [2020-08-18 15:14:58,825 INFO L226 Difference]: Without dead ends: 236 [2020-08-18 15:14:58,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 15:14:58,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-08-18 15:14:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 195. [2020-08-18 15:14:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-08-18 15:14:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2020-08-18 15:14:58,872 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2020-08-18 15:14:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:14:58,873 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2020-08-18 15:14:58,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:14:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2020-08-18 15:14:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-18 15:14:58,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:14:58,875 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] [2020-08-18 15:14:58,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:14:58,876 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:14:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:14:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash 590157777, now seen corresponding path program 1 times [2020-08-18 15:14:58,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:14:58,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212113536] [2020-08-18 15:14:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:14:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,189 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:14:59,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:14:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:14:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:14:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:14:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:14:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 15:14:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:14:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:14:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:14:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:14:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 15:14:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 15:14:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:14:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:14:59,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212113536] [2020-08-18 15:14:59,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:14:59,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 15:14:59,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40943999] [2020-08-18 15:14:59,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:14:59,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:14:59,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:14:59,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:14:59,357 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 8 states. [2020-08-18 15:14:59,822 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:00,904 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:01,189 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:01,429 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:01,656 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:01,946 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:15:03,013 INFO L93 Difference]: Finished difference Result 580 states and 716 transitions. [2020-08-18 15:15:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 15:15:03,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-08-18 15:15:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:15:03,021 INFO L225 Difference]: With dead ends: 580 [2020-08-18 15:15:03,021 INFO L226 Difference]: Without dead ends: 409 [2020-08-18 15:15:03,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 15:15:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-08-18 15:15:03,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 345. [2020-08-18 15:15:03,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-08-18 15:15:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 394 transitions. [2020-08-18 15:15:03,098 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 394 transitions. Word has length 78 [2020-08-18 15:15:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:15:03,099 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 394 transitions. [2020-08-18 15:15:03,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:15:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 394 transitions. [2020-08-18 15:15:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-18 15:15:03,101 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:15:03,101 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] [2020-08-18 15:15:03,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 15:15:03,101 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:15:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:15:03,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1032148237, now seen corresponding path program 1 times [2020-08-18 15:15:03,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:15:03,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350306634] [2020-08-18 15:15:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:15:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,370 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:15:03,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:15:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:15:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:15:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:15:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:15:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 15:15:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:15:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:15:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:15:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 15:15:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-18 15:15:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:15:03,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350306634] [2020-08-18 15:15:03,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:15:03,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 15:15:03,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073167582] [2020-08-18 15:15:03,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:15:03,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:15:03,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:15:03,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:15:03,493 INFO L87 Difference]: Start difference. First operand 345 states and 394 transitions. Second operand 9 states. [2020-08-18 15:15:04,093 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:05,147 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:05,373 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:05,670 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:05,961 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:06,213 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:07,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:15:07,221 INFO L93 Difference]: Finished difference Result 448 states and 562 transitions. [2020-08-18 15:15:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 15:15:07,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-08-18 15:15:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:15:07,228 INFO L225 Difference]: With dead ends: 448 [2020-08-18 15:15:07,228 INFO L226 Difference]: Without dead ends: 445 [2020-08-18 15:15:07,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 15:15:07,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-08-18 15:15:07,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 345. [2020-08-18 15:15:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-08-18 15:15:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-08-18 15:15:07,303 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 82 [2020-08-18 15:15:07,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:15:07,304 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-08-18 15:15:07,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:15:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-08-18 15:15:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 15:15:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:15:07,306 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] [2020-08-18 15:15:07,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 15:15:07,307 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:15:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:15:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2065507240, now seen corresponding path program 1 times [2020-08-18 15:15:07,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:15:07,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204043706] [2020-08-18 15:15:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:15:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,575 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:15:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:15:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:15:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:15:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:15:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:15:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 15:15:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:15:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:15:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:15:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 15:15:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 15:15:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:15:07,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204043706] [2020-08-18 15:15:07,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:15:07,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 15:15:07,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054360945] [2020-08-18 15:15:07,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:15:07,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:15:07,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:15:07,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:15:07,706 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 9 states. [2020-08-18 15:15:08,717 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 15:15:09,068 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 15:15:09,359 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:09,600 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:15:10,535 INFO L93 Difference]: Finished difference Result 770 states and 946 transitions. [2020-08-18 15:15:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 15:15:10,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-18 15:15:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:15:10,542 INFO L225 Difference]: With dead ends: 770 [2020-08-18 15:15:10,542 INFO L226 Difference]: Without dead ends: 449 [2020-08-18 15:15:10,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-18 15:15:10,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-08-18 15:15:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 355. [2020-08-18 15:15:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-08-18 15:15:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 403 transitions. [2020-08-18 15:15:10,625 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 403 transitions. Word has length 83 [2020-08-18 15:15:10,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:15:10,625 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 403 transitions. [2020-08-18 15:15:10,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:15:10,626 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 403 transitions. [2020-08-18 15:15:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 15:15:10,627 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:15:10,627 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] [2020-08-18 15:15:10,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 15:15:10,628 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:15:10,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:15:10,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2088139494, now seen corresponding path program 1 times [2020-08-18 15:15:10,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:15:10,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040921378] [2020-08-18 15:15:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:15:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,905 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:15:10,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:15:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:15:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:15:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:15:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:15:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 15:15:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:15:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:10,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:15:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:11,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:15:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 15:15:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:11,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 15:15:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:15:11,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040921378] [2020-08-18 15:15:11,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:15:11,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 15:15:11,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787338620] [2020-08-18 15:15:11,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 15:15:11,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:15:11,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 15:15:11,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 15:15:11,028 INFO L87 Difference]: Start difference. First operand 355 states and 403 transitions. Second operand 11 states. [2020-08-18 15:15:11,649 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:11,943 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:12,267 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:12,973 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:13,221 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:13,466 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 15:15:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:15:14,606 INFO L93 Difference]: Finished difference Result 794 states and 986 transitions. [2020-08-18 15:15:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 15:15:14,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-08-18 15:15:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:15:14,613 INFO L225 Difference]: With dead ends: 794 [2020-08-18 15:15:14,613 INFO L226 Difference]: Without dead ends: 463 [2020-08-18 15:15:14,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 15:15:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-08-18 15:15:14,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2020-08-18 15:15:14,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-18 15:15:14,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 411 transitions. [2020-08-18 15:15:14,695 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 411 transitions. Word has length 83 [2020-08-18 15:15:14,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:15:14,696 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 411 transitions. [2020-08-18 15:15:14,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 15:15:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 411 transitions. [2020-08-18 15:15:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 15:15:14,700 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:15:14,700 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] [2020-08-18 15:15:14,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 15:15:14,701 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:15:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:15:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1181335803, now seen corresponding path program 1 times [2020-08-18 15:15:14,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:15:14,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683555561] [2020-08-18 15:15:14,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:15:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:14,961 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 15:15:14,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:15:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 15:15:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 15:15:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:14,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 15:15:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:14,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 15:15:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 15:15:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 15:15:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 15:15:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 15:15:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:15:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 15:15:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 15:15:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:15:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:15:15,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683555561] [2020-08-18 15:15:15,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:15:15,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 15:15:15,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209098584] [2020-08-18 15:15:15,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:15:15,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:15:15,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:15:15,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:15:15,089 INFO L87 Difference]: Start difference. First operand 363 states and 411 transitions. Second operand 7 states. [2020-08-18 15:15:15,753 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:16,257 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 15:15:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:15:18,240 INFO L93 Difference]: Finished difference Result 1097 states and 1408 transitions. [2020-08-18 15:15:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 15:15:18,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-18 15:15:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:15:18,248 INFO L225 Difference]: With dead ends: 1097 [2020-08-18 15:15:18,248 INFO L226 Difference]: Without dead ends: 758 [2020-08-18 15:15:18,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 15:15:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-08-18 15:15:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 659. [2020-08-18 15:15:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-08-18 15:15:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 781 transitions. [2020-08-18 15:15:18,447 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 781 transitions. Word has length 83 [2020-08-18 15:15:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:15:18,449 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 781 transitions. [2020-08-18 15:15:18,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:15:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 781 transitions. [2020-08-18 15:15:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-18 15:15:18,455 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:15:18,456 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] [2020-08-18 15:15:18,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 15:15:18,456 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:15:18,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:15:18,457 INFO L82 PathProgramCache]: Analyzing trace with hash -765720469, now seen corresponding path program 1 times [2020-08-18 15:15:18,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:15:18,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402196433] [2020-08-18 15:15:18,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:15:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 15:15:18,548 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 15:15:18,549 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 15:15:18,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 15:15:18,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:15:18 BoogieIcfgContainer [2020-08-18 15:15:18,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:15:18,594 INFO L168 Benchmark]: Toolchain (without parser) took 30740.22 ms. Allocated memory was 147.8 MB in the beginning and 602.4 MB in the end (delta: 454.6 MB). Free memory was 102.6 MB in the beginning and 435.0 MB in the end (delta: -332.5 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,596 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.55 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 102.4 MB in the beginning and 170.2 MB in the end (delta: -67.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,603 INFO L168 Benchmark]: Boogie Preprocessor took 147.87 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,604 INFO L168 Benchmark]: RCFGBuilder took 1157.34 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 191.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,607 INFO L168 Benchmark]: TraceAbstraction took 28765.47 ms. Allocated memory was 234.9 MB in the beginning and 602.4 MB in the end (delta: 367.5 MB). Free memory was 190.1 MB in the beginning and 435.0 MB in the end (delta: -244.9 MB). Peak memory consumption was 122.6 MB. Max. memory is 7.1 GB. [2020-08-18 15:15:18,613 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 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.55 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 102.4 MB in the beginning and 170.2 MB in the end (delta: -67.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.87 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1157.34 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 165.6 MB in the beginning and 191.5 MB in the end (delta: -26.0 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28765.47 ms. Allocated memory was 234.9 MB in the beginning and 602.4 MB in the end (delta: 367.5 MB). Free memory was 190.1 MB in the beginning and 435.0 MB in the end (delta: -244.9 MB). Peak memory consumption was 122.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 950]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L150] int retValue_acc ; [L151] int tmp ; [L155] FCALL select_helpers() [L156] FCALL select_features() [L157] CALL, EXPR valid_product() [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] return (retValue_acc); [L157] RET, EXPR valid_product() [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L161] FCALL setup() [L162] CALL runTest() [L141] CALL test() [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] splverifierCounter = 0 [L752] COND TRUE 1 [L754] COND TRUE splverifierCounter < 4 [L760] tmp = __VERIFIER_nondet_int() [L762] COND TRUE \read(tmp) [L764] CALL waterRise() [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 [L764] RET waterRise() [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp___0) [L774] CALL changeMethaneLevel() [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 [L774] RET changeMethaneLevel() [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) [L795] CALL timeShift() [L552] COND FALSE !(\read(pumpRunning)) [L559] COND TRUE \read(systemActive) [L561] CALL processEnvironment() [L607] int tmp ; [L610] COND FALSE !(\read(pumpRunning)) [L625] CALL processEnvironment__wrappee__highWaterSensor() [L581] int tmp ; [L584] COND TRUE ! pumpRunning [L586] CALL, EXPR isHighWaterLevel() [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; [L710] CALL, EXPR isHighWaterSensorDry() [L923] int retValue_acc ; [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); [L710] RET, EXPR isHighWaterSensorDry() [L710] tmp = isHighWaterSensorDry() [L712] COND FALSE !(\read(tmp)) [L715] tmp___0 = 1 [L717] retValue_acc = tmp___0 [L718] return (retValue_acc); [L586] RET, EXPR isHighWaterLevel() [L586] tmp = isHighWaterLevel() [L588] COND TRUE \read(tmp) [L590] CALL activatePump() [L635] pumpRunning = 1 [L590] RET activatePump() [L625] RET processEnvironment__wrappee__highWaterSensor() [L561] RET processEnvironment() [L567] CALL __utac_acc__Specification1_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L49] RET, EXPR isMethaneLevelCritical() [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L53] CALL, EXPR isPumpRunning() [L659] int retValue_acc ; [L662] retValue_acc = pumpRunning [L663] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L950] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1043 SDtfs, 1701 SDslu, 958 SDs, 0 SdLazy, 4847 SolverSat, 1008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 219 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 580 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 186785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...